Home / 28,262.52-39,002.25-15,687.24

Finding the Fourth Proportional to 28,262.52, 39,002.25 and 15,687.24

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Solution

The fourth proportional to 28,262.52, 39,002.25 and 15,687.24 is: 21,648.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.52 : 39,002.25 = 15,687.24 : x
  2. Step 2: Convert to fraction form
    28,262.52/39,002.25 = 15,687.24/x
  3. Step 3: Cross multiply
    28,262.52x = 39,002.25 × 15,687.24
  4. Step 4: Simplify right side
    28,262.52x = 611,837,656.29
  5. Step 5: Solve for x
    x = 611,837,656.29/28,262.52
  6. Step 6: Final answer
    x = 21,648.38

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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.