Home / 22,281.40-30,747.54-12,209.56

Finding the Fourth Proportional to 22,281.40, 30,747.54 and 12,209.56

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Solution

The fourth proportional to 22,281.40, 30,747.54 and 12,209.56 is: 16,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.40 : 30,747.54 = 12,209.56 : x
  2. Step 2: Convert to fraction form
    22,281.40/30,747.54 = 12,209.56/x
  3. Step 3: Cross multiply
    22,281.40x = 30,747.54 × 12,209.56
  4. Step 4: Simplify right side
    22,281.40x = 375,413,934.48
  5. Step 5: Solve for x
    x = 375,413,934.48/22,281.40
  6. Step 6: Final answer
    x = 16,848.76

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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.