Home / 22,740.76-31,382.22-12,669.13

Finding the Fourth Proportional to 22,740.76, 31,382.22 and 12,669.13

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Solution

The fourth proportional to 22,740.76, 31,382.22 and 12,669.13 is: 17,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.76 : 31,382.22 = 12,669.13 : x
  2. Step 2: Convert to fraction form
    22,740.76/31,382.22 = 12,669.13/x
  3. Step 3: Cross multiply
    22,740.76x = 31,382.22 × 12,669.13
  4. Step 4: Simplify right side
    22,740.76x = 397,585,424.87
  5. Step 5: Solve for x
    x = 397,585,424.87/22,740.76
  6. Step 6: Final answer
    x = 17,483.38

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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.