Home / 22,711.84-31,337.55-13,278.58

Finding the Fourth Proportional to 22,711.84, 31,337.55 and 13,278.58

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Solution

The fourth proportional to 22,711.84, 31,337.55 and 13,278.58 is: 18,321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.84 : 31,337.55 = 13,278.58 : x
  2. Step 2: Convert to fraction form
    22,711.84/31,337.55 = 13,278.58/x
  3. Step 3: Cross multiply
    22,711.84x = 31,337.55 × 13,278.58
  4. Step 4: Simplify right side
    22,711.84x = 416,118,164.68
  5. Step 5: Solve for x
    x = 416,118,164.68/22,711.84
  6. Step 6: Final answer
    x = 18,321.64

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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.