Home / 22,850.22-31,534.38-12,778.80

Finding the Fourth Proportional to 22,850.22, 31,534.38 and 12,778.80

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Solution

The fourth proportional to 22,850.22, 31,534.38 and 12,778.80 is: 17,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,850.22 : 31,534.38 = 12,778.80 : x
  2. Step 2: Convert to fraction form
    22,850.22/31,534.38 = 12,778.80/x
  3. Step 3: Cross multiply
    22,850.22x = 31,534.38 × 12,778.80
  4. Step 4: Simplify right side
    22,850.22x = 402,971,535.14
  5. Step 5: Solve for x
    x = 402,971,535.14/22,850.22
  6. Step 6: Final answer
    x = 17,635.35

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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.