Home / 44,084.88-66,131.28-12,920.40

Finding the Fourth Proportional to 44,084.88, 66,131.28 and 12,920.40

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Solution

The fourth proportional to 44,084.88, 66,131.28 and 12,920.40 is: 19,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,084.88 : 66,131.28 = 12,920.40 : x
  2. Step 2: Convert to fraction form
    44,084.88/66,131.28 = 12,920.40/x
  3. Step 3: Cross multiply
    44,084.88x = 66,131.28 × 12,920.40
  4. Step 4: Simplify right side
    44,084.88x = 854,442,590.11
  5. Step 5: Solve for x
    x = 854,442,590.11/44,084.88
  6. Step 6: Final answer
    x = 19,381.76

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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.