Home / 28,612.56-39,475.68-18,553.92

Finding the Fourth Proportional to 28,612.56, 39,475.68 and 18,553.92

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Solution

The fourth proportional to 28,612.56, 39,475.68 and 18,553.92 is: 25,598.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,612.56 : 39,475.68 = 18,553.92 : x
  2. Step 2: Convert to fraction form
    28,612.56/39,475.68 = 18,553.92/x
  3. Step 3: Cross multiply
    28,612.56x = 39,475.68 × 18,553.92
  4. Step 4: Simplify right side
    28,612.56x = 732,428,608.67
  5. Step 5: Solve for x
    x = 732,428,608.67/28,612.56
  6. Step 6: Final answer
    x = 25,598.15

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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.