Home / 20,862.38-31,277.16-10,325.00

Finding the Fourth Proportional to 20,862.38, 31,277.16 and 10,325.00

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Solution

The fourth proportional to 20,862.38, 31,277.16 and 10,325.00 is: 15,479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.38 : 31,277.16 = 10,325.00 : x
  2. Step 2: Convert to fraction form
    20,862.38/31,277.16 = 10,325.00/x
  3. Step 3: Cross multiply
    20,862.38x = 31,277.16 × 10,325.00
  4. Step 4: Simplify right side
    20,862.38x = 322,936,755.19
  5. Step 5: Solve for x
    x = 322,936,755.19/20,862.38
  6. Step 6: Final answer
    x = 15,479.38

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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.