Home / 22,557.27-31,121.88-13,124.01

Finding the Fourth Proportional to 22,557.27, 31,121.88 and 13,124.01

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Solution

The fourth proportional to 22,557.27, 31,121.88 and 13,124.01 is: 18,106.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.27 : 31,121.88 = 13,124.01 : x
  2. Step 2: Convert to fraction form
    22,557.27/31,121.88 = 13,124.01/x
  3. Step 3: Cross multiply
    22,557.27x = 31,121.88 × 13,124.01
  4. Step 4: Simplify right side
    22,557.27x = 408,443,815.12
  5. Step 5: Solve for x
    x = 408,443,815.12/22,557.27
  6. Step 6: Final answer
    x = 18,106.97

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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.