Home / 20,724.30-31,086.66-16,590.59

Finding the Fourth Proportional to 20,724.30, 31,086.66 and 16,590.59

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Solution

The fourth proportional to 20,724.30, 31,086.66 and 16,590.59 is: 24,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.30 : 31,086.66 = 16,590.59 : x
  2. Step 2: Convert to fraction form
    20,724.30/31,086.66 = 16,590.59/x
  3. Step 3: Cross multiply
    20,724.30x = 31,086.66 × 16,590.59
  4. Step 4: Simplify right side
    20,724.30x = 515,745,875.10
  5. Step 5: Solve for x
    x = 515,745,875.10/20,724.30
  6. Step 6: Final answer
    x = 24,886.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.