Home / 25,373.31-38,004.23-20,920.80

Finding the Fourth Proportional to 25,373.31, 38,004.23 and 20,920.80

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Solution

The fourth proportional to 25,373.31, 38,004.23 and 20,920.80 is: 31,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,373.31 : 38,004.23 = 20,920.80 : x
  2. Step 2: Convert to fraction form
    25,373.31/38,004.23 = 20,920.80/x
  3. Step 3: Cross multiply
    25,373.31x = 38,004.23 × 20,920.80
  4. Step 4: Simplify right side
    25,373.31x = 795,078,790.38
  5. Step 5: Solve for x
    x = 795,078,790.38/25,373.31
  6. Step 6: Final answer
    x = 31,335.24

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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.