Home / 22,521.85-31,080.14-12,585.85

Finding the Fourth Proportional to 22,521.85, 31,080.14 and 12,585.85

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Solution

The fourth proportional to 22,521.85, 31,080.14 and 12,585.85 is: 17,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,521.85 : 31,080.14 = 12,585.85 : x
  2. Step 2: Convert to fraction form
    22,521.85/31,080.14 = 12,585.85/x
  3. Step 3: Cross multiply
    22,521.85x = 31,080.14 × 12,585.85
  4. Step 4: Simplify right side
    22,521.85x = 391,169,933.78
  5. Step 5: Solve for x
    x = 391,169,933.78/22,521.85
  6. Step 6: Final answer
    x = 17,368.47

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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.