Home / 27,565.12-38,043.28-15,630.56

Finding the Fourth Proportional to 27,565.12, 38,043.28 and 15,630.56

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Solution

The fourth proportional to 27,565.12, 38,043.28 and 15,630.56 is: 21,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,565.12 : 38,043.28 = 15,630.56 : x
  2. Step 2: Convert to fraction form
    27,565.12/38,043.28 = 15,630.56/x
  3. Step 3: Cross multiply
    27,565.12x = 38,043.28 × 15,630.56
  4. Step 4: Simplify right side
    27,565.12x = 594,637,770.64
  5. Step 5: Solve for x
    x = 594,637,770.64/27,565.12
  6. Step 6: Final answer
    x = 21,572.11

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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.