Home / 40,028.13-55,079.46-38,810.70

Finding the Fourth Proportional to 40,028.13, 55,079.46 and 38,810.70

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Solution

The fourth proportional to 40,028.13, 55,079.46 and 38,810.70 is: 53,404.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,028.13 : 55,079.46 = 38,810.70 : x
  2. Step 2: Convert to fraction form
    40,028.13/55,079.46 = 38,810.70/x
  3. Step 3: Cross multiply
    40,028.13x = 55,079.46 × 38,810.70
  4. Step 4: Simplify right side
    40,028.13x = 2,137,672,398.22
  5. Step 5: Solve for x
    x = 2,137,672,398.22/40,028.13
  6. Step 6: Final answer
    x = 53,404.25

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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.