Home / 43,031.55-64,553.40-13,446.30

Finding the Fourth Proportional to 43,031.55, 64,553.40 and 13,446.30

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Solution

The fourth proportional to 43,031.55, 64,553.40 and 13,446.30 is: 20,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,031.55 : 64,553.40 = 13,446.30 : x
  2. Step 2: Convert to fraction form
    43,031.55/64,553.40 = 13,446.30/x
  3. Step 3: Cross multiply
    43,031.55x = 64,553.40 × 13,446.30
  4. Step 4: Simplify right side
    43,031.55x = 868,004,382.42
  5. Step 5: Solve for x
    x = 868,004,382.42/43,031.55
  6. Step 6: Final answer
    x = 20,171.35

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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.