Home / 38,387.40-57,577.32-13,422.84

Finding the Fourth Proportional to 38,387.40, 57,577.32 and 13,422.84

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Solution

The fourth proportional to 38,387.40, 57,577.32 and 13,422.84 is: 20,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,387.40 : 57,577.32 = 13,422.84 : x
  2. Step 2: Convert to fraction form
    38,387.40/57,577.32 = 13,422.84/x
  3. Step 3: Cross multiply
    38,387.40x = 57,577.32 × 13,422.84
  4. Step 4: Simplify right side
    38,387.40x = 772,851,153.99
  5. Step 5: Solve for x
    x = 772,851,153.99/38,387.40
  6. Step 6: Final answer
    x = 20,132.94

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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.