Home / 39,254.67-54,172.44-21,350.70

Finding the Fourth Proportional to 39,254.67, 54,172.44 and 21,350.70

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Solution

The fourth proportional to 39,254.67, 54,172.44 and 21,350.70 is: 29,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,254.67 : 54,172.44 = 21,350.70 : x
  2. Step 2: Convert to fraction form
    39,254.67/54,172.44 = 21,350.70/x
  3. Step 3: Cross multiply
    39,254.67x = 54,172.44 × 21,350.70
  4. Step 4: Simplify right side
    39,254.67x = 1,156,619,514.71
  5. Step 5: Solve for x
    x = 1,156,619,514.71/39,254.67
  6. Step 6: Final answer
    x = 29,464.51

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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.