Home / 28,062.64-38,726.26-15,487.39

Finding the Fourth Proportional to 28,062.64, 38,726.26 and 15,487.39

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Solution

The fourth proportional to 28,062.64, 38,726.26 and 15,487.39 is: 21,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.64 : 38,726.26 = 15,487.39 : x
  2. Step 2: Convert to fraction form
    28,062.64/38,726.26 = 15,487.39/x
  3. Step 3: Cross multiply
    28,062.64x = 38,726.26 × 15,487.39
  4. Step 4: Simplify right side
    28,062.64x = 599,768,691.86
  5. Step 5: Solve for x
    x = 599,768,691.86/28,062.64
  6. Step 6: Final answer
    x = 21,372.50

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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.