Home / 22,561.02-31,137.40-13,132.62

Finding the Fourth Proportional to 22,561.02, 31,137.40 and 13,132.62

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Solution

The fourth proportional to 22,561.02, 31,137.40 and 13,132.62 is: 18,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,561.02 : 31,137.40 = 13,132.62 : x
  2. Step 2: Convert to fraction form
    22,561.02/31,137.40 = 13,132.62/x
  3. Step 3: Cross multiply
    22,561.02x = 31,137.40 × 13,132.62
  4. Step 4: Simplify right side
    22,561.02x = 408,915,641.99
  5. Step 5: Solve for x
    x = 408,915,641.99/22,561.02
  6. Step 6: Final answer
    x = 18,124.87

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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.