Home / 22,845.04-31,527.78-13,890.88

Finding the Fourth Proportional to 22,845.04, 31,527.78 and 13,890.88

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Solution

The fourth proportional to 22,845.04, 31,527.78 and 13,890.88 is: 19,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,845.04 : 31,527.78 = 13,890.88 : x
  2. Step 2: Convert to fraction form
    22,845.04/31,527.78 = 13,890.88/x
  3. Step 3: Cross multiply
    22,845.04x = 31,527.78 × 13,890.88
  4. Step 4: Simplify right side
    22,845.04x = 437,948,608.65
  5. Step 5: Solve for x
    x = 437,948,608.65/22,845.04
  6. Step 6: Final answer
    x = 19,170.40

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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.