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Finding the Fourth Proportional to 22,970.40, 34,423.20 and 14,179.20

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Solution

The fourth proportional to 22,970.40, 34,423.20 and 14,179.20 is: 21,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.40 : 34,423.20 = 14,179.20 : x
  2. Step 2: Convert to fraction form
    22,970.40/34,423.20 = 14,179.20/x
  3. Step 3: Cross multiply
    22,970.40x = 34,423.20 × 14,179.20
  4. Step 4: Simplify right side
    22,970.40x = 488,093,437.44
  5. Step 5: Solve for x
    x = 488,093,437.44/22,970.40
  6. Step 6: Final answer
    x = 21,248.80

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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.