Home / 22,778.28-31,433.27-13,346.64

Finding the Fourth Proportional to 22,778.28, 31,433.27 and 13,346.64

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Solution

The fourth proportional to 22,778.28, 31,433.27 and 13,346.64 is: 18,417.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.28 : 31,433.27 = 13,346.64 : x
  2. Step 2: Convert to fraction form
    22,778.28/31,433.27 = 13,346.64/x
  3. Step 3: Cross multiply
    22,778.28x = 31,433.27 × 13,346.64
  4. Step 4: Simplify right side
    22,778.28x = 419,528,471.98
  5. Step 5: Solve for x
    x = 419,528,471.98/22,778.28
  6. Step 6: Final answer
    x = 18,417.92

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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.