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Finding the Fourth Proportional to 19,349.80, 29,024.70 and 8,981.80

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Solution

The fourth proportional to 19,349.80, 29,024.70 and 8,981.80 is: 13,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,349.80 : 29,024.70 = 8,981.80 : x
  2. Step 2: Convert to fraction form
    19,349.80/29,024.70 = 8,981.80/x
  3. Step 3: Cross multiply
    19,349.80x = 29,024.70 × 8,981.80
  4. Step 4: Simplify right side
    19,349.80x = 260,694,050.46
  5. Step 5: Solve for x
    x = 260,694,050.46/19,349.80
  6. Step 6: Final answer
    x = 13,472.70

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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.