Home / 28,508.48-39,342.52-15,932.96

Finding the Fourth Proportional to 28,508.48, 39,342.52 and 15,932.96

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Solution

The fourth proportional to 28,508.48, 39,342.52 and 15,932.96 is: 21,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.48 : 39,342.52 = 15,932.96 : x
  2. Step 2: Convert to fraction form
    28,508.48/39,342.52 = 15,932.96/x
  3. Step 3: Cross multiply
    28,508.48x = 39,342.52 × 15,932.96
  4. Step 4: Simplify right side
    28,508.48x = 626,842,797.46
  5. Step 5: Solve for x
    x = 626,842,797.46/28,508.48
  6. Step 6: Final answer
    x = 21,987.94

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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.