Home / 22,712.92-31,323.89-15,903.45

Finding the Fourth Proportional to 22,712.92, 31,323.89 and 15,903.45

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Solution

The fourth proportional to 22,712.92, 31,323.89 and 15,903.45 is: 21,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.92 : 31,323.89 = 15,903.45 : x
  2. Step 2: Convert to fraction form
    22,712.92/31,323.89 = 15,903.45/x
  3. Step 3: Cross multiply
    22,712.92x = 31,323.89 × 15,903.45
  4. Step 4: Simplify right side
    22,712.92x = 498,157,958.18
  5. Step 5: Solve for x
    x = 498,157,958.18/22,712.92
  6. Step 6: Final answer
    x = 21,932.80

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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.