Home / 28,690.89-39,592.17-15,944.91

Finding the Fourth Proportional to 28,690.89, 39,592.17 and 15,944.91

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Solution

The fourth proportional to 28,690.89, 39,592.17 and 15,944.91 is: 22,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.89 : 39,592.17 = 15,944.91 : x
  2. Step 2: Convert to fraction form
    28,690.89/39,592.17 = 15,944.91/x
  3. Step 3: Cross multiply
    28,690.89x = 39,592.17 × 15,944.91
  4. Step 4: Simplify right side
    28,690.89x = 631,293,587.35
  5. Step 5: Solve for x
    x = 631,293,587.35/28,690.89
  6. Step 6: Final answer
    x = 22,003.28

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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.