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Finding the Fourth Proportional to 34,402.40, 51,610.80 and 11,031.20

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Solution

The fourth proportional to 34,402.40, 51,610.80 and 11,031.20 is: 16,549.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,402.40 : 51,610.80 = 11,031.20 : x
  2. Step 2: Convert to fraction form
    34,402.40/51,610.80 = 11,031.20/x
  3. Step 3: Cross multiply
    34,402.40x = 51,610.80 × 11,031.20
  4. Step 4: Simplify right side
    34,402.40x = 569,329,056.96
  5. Step 5: Solve for x
    x = 569,329,056.96/34,402.40
  6. Step 6: Final answer
    x = 16,549.11

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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.