Home / 22,281.18-30,748.01-13,330.79

Finding the Fourth Proportional to 22,281.18, 30,748.01 and 13,330.79

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Solution

The fourth proportional to 22,281.18, 30,748.01 and 13,330.79 is: 18,396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.18 : 30,748.01 = 13,330.79 : x
  2. Step 2: Convert to fraction form
    22,281.18/30,748.01 = 13,330.79/x
  3. Step 3: Cross multiply
    22,281.18x = 30,748.01 × 13,330.79
  4. Step 4: Simplify right side
    22,281.18x = 409,895,043.83
  5. Step 5: Solve for x
    x = 409,895,043.83/22,281.18
  6. Step 6: Final answer
    x = 18,396.47

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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.