Home / 26,442.90-39,666.15-8,429.70

Finding the Fourth Proportional to 26,442.90, 39,666.15 and 8,429.70

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Solution

The fourth proportional to 26,442.90, 39,666.15 and 8,429.70 is: 12,645.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,442.90 : 39,666.15 = 8,429.70 : x
  2. Step 2: Convert to fraction form
    26,442.90/39,666.15 = 8,429.70/x
  3. Step 3: Cross multiply
    26,442.90x = 39,666.15 × 8,429.70
  4. Step 4: Simplify right side
    26,442.90x = 334,373,744.66
  5. Step 5: Solve for x
    x = 334,373,744.66/26,442.90
  6. Step 6: Final answer
    x = 12,645.12

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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.