Home / 22,550.40-31,104-18,565.20

Finding the Fourth Proportional to 22,550.40, 31,104 and 18,565.20

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Solution

The fourth proportional to 22,550.40, 31,104 and 18,565.20 is: 25,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,550.40 : 31,104 = 18,565.20 : x
  2. Step 2: Convert to fraction form
    22,550.40/31,104 = 18,565.20/x
  3. Step 3: Cross multiply
    22,550.40x = 31,104 × 18,565.20
  4. Step 4: Simplify right side
    22,550.40x = 577,451,980.80
  5. Step 5: Solve for x
    x = 577,451,980.80/22,550.40
  6. Step 6: Final answer
    x = 25,607.17

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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.