Home / 28,602.59-39,470.22-15,854.96

Finding the Fourth Proportional to 28,602.59, 39,470.22 and 15,854.96

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Solution

The fourth proportional to 28,602.59, 39,470.22 and 15,854.96 is: 21,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,602.59 : 39,470.22 = 15,854.96 : x
  2. Step 2: Convert to fraction form
    28,602.59/39,470.22 = 15,854.96/x
  3. Step 3: Cross multiply
    28,602.59x = 39,470.22 × 15,854.96
  4. Step 4: Simplify right side
    28,602.59x = 625,798,759.29
  5. Step 5: Solve for x
    x = 625,798,759.29/28,602.59
  6. Step 6: Final answer
    x = 21,879.09

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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.