Home / 20,725.28-31,097.10-10,862.22

Finding the Fourth Proportional to 20,725.28, 31,097.10 and 10,862.22

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Solution

The fourth proportional to 20,725.28, 31,097.10 and 10,862.22 is: 16,298.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.28 : 31,097.10 = 10,862.22 : x
  2. Step 2: Convert to fraction form
    20,725.28/31,097.10 = 10,862.22/x
  3. Step 3: Cross multiply
    20,725.28x = 31,097.10 × 10,862.22
  4. Step 4: Simplify right side
    20,725.28x = 337,783,541.56
  5. Step 5: Solve for x
    x = 337,783,541.56/20,725.28
  6. Step 6: Final answer
    x = 16,298.14

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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.