Home / 22,589.40-31,154.96-15,897.20

Finding the Fourth Proportional to 22,589.40, 31,154.96 and 15,897.20

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Solution

The fourth proportional to 22,589.40, 31,154.96 and 15,897.20 is: 21,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,589.40 : 31,154.96 = 15,897.20 : x
  2. Step 2: Convert to fraction form
    22,589.40/31,154.96 = 15,897.20/x
  3. Step 3: Cross multiply
    22,589.40x = 31,154.96 × 15,897.20
  4. Step 4: Simplify right side
    22,589.40x = 495,276,630.11
  5. Step 5: Solve for x
    x = 495,276,630.11/22,589.40
  6. Step 6: Final answer
    x = 21,925.18

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.