Home / 22,854.24-31,536-13,422.60

Finding the Fourth Proportional to 22,854.24, 31,536 and 13,422.60

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Solution

The fourth proportional to 22,854.24, 31,536 and 13,422.60 is: 18,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,854.24 : 31,536 = 13,422.60 : x
  2. Step 2: Convert to fraction form
    22,854.24/31,536 = 13,422.60/x
  3. Step 3: Cross multiply
    22,854.24x = 31,536 × 13,422.60
  4. Step 4: Simplify right side
    22,854.24x = 423,295,113.60
  5. Step 5: Solve for x
    x = 423,295,113.60/22,854.24
  6. Step 6: Final answer
    x = 18,521.51

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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.