Home / 28,690.02-39,591.68-15,943.11

Finding the Fourth Proportional to 28,690.02, 39,591.68 and 15,943.11

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Solution

The fourth proportional to 28,690.02, 39,591.68 and 15,943.11 is: 22,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.02 : 39,591.68 = 15,943.11 : x
  2. Step 2: Convert to fraction form
    28,690.02/39,591.68 = 15,943.11/x
  3. Step 3: Cross multiply
    28,690.02x = 39,591.68 × 15,943.11
  4. Step 4: Simplify right side
    28,690.02x = 631,214,429.61
  5. Step 5: Solve for x
    x = 631,214,429.61/28,690.02
  6. Step 6: Final answer
    x = 22,001.18

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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.