Home / 38,645.40-57,951.90-12,343.08

Finding the Fourth Proportional to 38,645.40, 57,951.90 and 12,343.08

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Solution

The fourth proportional to 38,645.40, 57,951.90 and 12,343.08 is: 18,509.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,645.40 : 57,951.90 = 12,343.08 : x
  2. Step 2: Convert to fraction form
    38,645.40/57,951.90 = 12,343.08/x
  3. Step 3: Cross multiply
    38,645.40x = 57,951.90 × 12,343.08
  4. Step 4: Simplify right side
    38,645.40x = 715,304,937.85
  5. Step 5: Solve for x
    x = 715,304,937.85/38,645.40
  6. Step 6: Final answer
    x = 18,509.45

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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.