Home / 22,772.40-31,444.57-15,686.52

Finding the Fourth Proportional to 22,772.40, 31,444.57 and 15,686.52

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Solution

The fourth proportional to 22,772.40, 31,444.57 and 15,686.52 is: 21,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,772.40 : 31,444.57 = 15,686.52 : x
  2. Step 2: Convert to fraction form
    22,772.40/31,444.57 = 15,686.52/x
  3. Step 3: Cross multiply
    22,772.40x = 31,444.57 × 15,686.52
  4. Step 4: Simplify right side
    22,772.40x = 493,255,876.20
  5. Step 5: Solve for x
    x = 493,255,876.20/22,772.40
  6. Step 6: Final answer
    x = 21,660.25

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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.