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Finding the Fourth Proportional to 19,602.80, 29,423.40 and 9,753.20

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Solution

The fourth proportional to 19,602.80, 29,423.40 and 9,753.20 is: 14,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.80 : 29,423.40 = 9,753.20 : x
  2. Step 2: Convert to fraction form
    19,602.80/29,423.40 = 9,753.20/x
  3. Step 3: Cross multiply
    19,602.80x = 29,423.40 × 9,753.20
  4. Step 4: Simplify right side
    19,602.80x = 286,972,304.88
  5. Step 5: Solve for x
    x = 286,972,304.88/19,602.80
  6. Step 6: Final answer
    x = 14,639.35

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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.