Home / 19,715.32-29,582.70-13,909.24

Finding the Fourth Proportional to 19,715.32, 29,582.70 and 13,909.24

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Solution

The fourth proportional to 19,715.32, 29,582.70 and 13,909.24 is: 20,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.32 : 29,582.70 = 13,909.24 : x
  2. Step 2: Convert to fraction form
    19,715.32/29,582.70 = 13,909.24/x
  3. Step 3: Cross multiply
    19,715.32x = 29,582.70 × 13,909.24
  4. Step 4: Simplify right side
    19,715.32x = 411,472,874.15
  5. Step 5: Solve for x
    x = 411,472,874.15/19,715.32
  6. Step 6: Final answer
    x = 20,870.72

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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.