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Finding the Fourth Proportional to 34,279.80, 51,410.10 and 10,913.40

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Solution

The fourth proportional to 34,279.80, 51,410.10 and 10,913.40 is: 16,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,279.80 : 51,410.10 = 10,913.40 : x
  2. Step 2: Convert to fraction form
    34,279.80/51,410.10 = 10,913.40/x
  3. Step 3: Cross multiply
    34,279.80x = 51,410.10 × 10,913.40
  4. Step 4: Simplify right side
    34,279.80x = 561,058,985.34
  5. Step 5: Solve for x
    x = 561,058,985.34/34,279.80
  6. Step 6: Final answer
    x = 16,367.04

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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.