Home / 28,306.88-39,062.04-15,732.56

Finding the Fourth Proportional to 28,306.88, 39,062.04 and 15,732.56

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Solution

The fourth proportional to 28,306.88, 39,062.04 and 15,732.56 is: 21,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.88 : 39,062.04 = 15,732.56 : x
  2. Step 2: Convert to fraction form
    28,306.88/39,062.04 = 15,732.56/x
  3. Step 3: Cross multiply
    28,306.88x = 39,062.04 × 15,732.56
  4. Step 4: Simplify right side
    28,306.88x = 614,545,888.02
  5. Step 5: Solve for x
    x = 614,545,888.02/28,306.88
  6. Step 6: Final answer
    x = 21,710.12

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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.