Home / 39,281.02-54,207.66-21,375.70

Finding the Fourth Proportional to 39,281.02, 54,207.66 and 21,375.70

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Solution

The fourth proportional to 39,281.02, 54,207.66 and 21,375.70 is: 29,498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281.02 : 54,207.66 = 21,375.70 : x
  2. Step 2: Convert to fraction form
    39,281.02/54,207.66 = 21,375.70/x
  3. Step 3: Cross multiply
    39,281.02x = 54,207.66 × 21,375.70
  4. Step 4: Simplify right side
    39,281.02x = 1,158,726,622.50
  5. Step 5: Solve for x
    x = 1,158,726,622.50/39,281.02
  6. Step 6: Final answer
    x = 29,498.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.