Home / 22,318.81-30,799.96-12,758.91

Finding the Fourth Proportional to 22,318.81, 30,799.96 and 12,758.91

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Solution

The fourth proportional to 22,318.81, 30,799.96 and 12,758.91 is: 17,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,318.81 : 30,799.96 = 12,758.91 : x
  2. Step 2: Convert to fraction form
    22,318.81/30,799.96 = 12,758.91/x
  3. Step 3: Cross multiply
    22,318.81x = 30,799.96 × 12,758.91
  4. Step 4: Simplify right side
    22,318.81x = 392,973,770.25
  5. Step 5: Solve for x
    x = 392,973,770.25/22,318.81
  6. Step 6: Final answer
    x = 17,607.29

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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.