Home / 22,666.50-31,278.24-13,718.97

Finding the Fourth Proportional to 22,666.50, 31,278.24 and 13,718.97

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Solution

The fourth proportional to 22,666.50, 31,278.24 and 13,718.97 is: 18,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,666.50 : 31,278.24 = 13,718.97 : x
  2. Step 2: Convert to fraction form
    22,666.50/31,278.24 = 13,718.97/x
  3. Step 3: Cross multiply
    22,666.50x = 31,278.24 × 13,718.97
  4. Step 4: Simplify right side
    22,666.50x = 429,105,236.21
  5. Step 5: Solve for x
    x = 429,105,236.21/22,666.50
  6. Step 6: Final answer
    x = 18,931.25

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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.