Home / 22,554.18-31,129.92-13,124.16

Finding the Fourth Proportional to 22,554.18, 31,129.92 and 13,124.16

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Solution

The fourth proportional to 22,554.18, 31,129.92 and 13,124.16 is: 18,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,554.18 : 31,129.92 = 13,124.16 : x
  2. Step 2: Convert to fraction form
    22,554.18/31,129.92 = 13,124.16/x
  3. Step 3: Cross multiply
    22,554.18x = 31,129.92 × 13,124.16
  4. Step 4: Simplify right side
    22,554.18x = 408,554,050.87
  5. Step 5: Solve for x
    x = 408,554,050.87/22,554.18
  6. Step 6: Final answer
    x = 18,114.34

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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.