Home / 20,897.64-31,351.11-10,373.40

Finding the Fourth Proportional to 20,897.64, 31,351.11 and 10,373.40

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Solution

The fourth proportional to 20,897.64, 31,351.11 and 10,373.40 is: 15,562.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.64 : 31,351.11 = 10,373.40 : x
  2. Step 2: Convert to fraction form
    20,897.64/31,351.11 = 10,373.40/x
  3. Step 3: Cross multiply
    20,897.64x = 31,351.11 × 10,373.40
  4. Step 4: Simplify right side
    20,897.64x = 325,217,604.47
  5. Step 5: Solve for x
    x = 325,217,604.47/20,897.64
  6. Step 6: Final answer
    x = 15,562.41

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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.