Home / 22,985.27-31,731.78-15,471.10

Finding the Fourth Proportional to 22,985.27, 31,731.78 and 15,471.10

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Solution

The fourth proportional to 22,985.27, 31,731.78 and 15,471.10 is: 21,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,985.27 : 31,731.78 = 15,471.10 : x
  2. Step 2: Convert to fraction form
    22,985.27/31,731.78 = 15,471.10/x
  3. Step 3: Cross multiply
    22,985.27x = 31,731.78 × 15,471.10
  4. Step 4: Simplify right side
    22,985.27x = 490,925,541.56
  5. Step 5: Solve for x
    x = 490,925,541.56/22,985.27
  6. Step 6: Final answer
    x = 21,358.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.