Home / 16,332.30-22,543.65-12,981.06

Finding the Fourth Proportional to 16,332.30, 22,543.65 and 12,981.06

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Solution

The fourth proportional to 16,332.30, 22,543.65 and 12,981.06 is: 17,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,332.30 : 22,543.65 = 12,981.06 : x
  2. Step 2: Convert to fraction form
    16,332.30/22,543.65 = 12,981.06/x
  3. Step 3: Cross multiply
    16,332.30x = 22,543.65 × 12,981.06
  4. Step 4: Simplify right side
    16,332.30x = 292,640,473.27
  5. Step 5: Solve for x
    x = 292,640,473.27/16,332.30
  6. Step 6: Final answer
    x = 17,917.90

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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.