Home / 29,070.60-40,118.28-20,587.92

Finding the Fourth Proportional to 29,070.60, 40,118.28 and 20,587.92

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Solution

The fourth proportional to 29,070.60, 40,118.28 and 20,587.92 is: 28,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,070.60 : 40,118.28 = 20,587.92 : x
  2. Step 2: Convert to fraction form
    29,070.60/40,118.28 = 20,587.92/x
  3. Step 3: Cross multiply
    29,070.60x = 40,118.28 × 20,587.92
  4. Step 4: Simplify right side
    29,070.60x = 825,951,939.18
  5. Step 5: Solve for x
    x = 825,951,939.18/29,070.60
  6. Step 6: Final answer
    x = 28,411.93

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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.