Home / 24,756.76-34,138.29-18,721.18

Finding the Fourth Proportional to 24,756.76, 34,138.29 and 18,721.18

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Solution

The fourth proportional to 24,756.76, 34,138.29 and 18,721.18 is: 25,815.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,756.76 : 34,138.29 = 18,721.18 : x
  2. Step 2: Convert to fraction form
    24,756.76/34,138.29 = 18,721.18/x
  3. Step 3: Cross multiply
    24,756.76x = 34,138.29 × 18,721.18
  4. Step 4: Simplify right side
    24,756.76x = 639,109,071.98
  5. Step 5: Solve for x
    x = 639,109,071.98/24,756.76
  6. Step 6: Final answer
    x = 25,815.54

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Half scale
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Double scale
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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.