Home / 22,565.19-31,138.94-12,492.92

Finding the Fourth Proportional to 22,565.19, 31,138.94 and 12,492.92

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Solution

The fourth proportional to 22,565.19, 31,138.94 and 12,492.92 is: 17,239.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,565.19 : 31,138.94 = 12,492.92 : x
  2. Step 2: Convert to fraction form
    22,565.19/31,138.94 = 12,492.92/x
  3. Step 3: Cross multiply
    22,565.19x = 31,138.94 × 12,492.92
  4. Step 4: Simplify right side
    22,565.19x = 389,016,068.15
  5. Step 5: Solve for x
    x = 389,016,068.15/22,565.19
  6. Step 6: Final answer
    x = 17,239.65

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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.