Home / 28,225.60-38,952.15-16,289.59

Finding the Fourth Proportional to 28,225.60, 38,952.15 and 16,289.59

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Solution

The fourth proportional to 28,225.60, 38,952.15 and 16,289.59 is: 22,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.60 : 38,952.15 = 16,289.59 : x
  2. Step 2: Convert to fraction form
    28,225.60/38,952.15 = 16,289.59/x
  3. Step 3: Cross multiply
    28,225.60x = 38,952.15 × 16,289.59
  4. Step 4: Simplify right side
    28,225.60x = 634,514,553.12
  5. Step 5: Solve for x
    x = 634,514,553.12/28,225.60
  6. Step 6: Final answer
    x = 22,480.11

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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.