Home / 21,760.35-32,642.79-9,281.69

Finding the Fourth Proportional to 21,760.35, 32,642.79 and 9,281.69

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Solution

The fourth proportional to 21,760.35, 32,642.79 and 9,281.69 is: 13,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,760.35 : 32,642.79 = 9,281.69 : x
  2. Step 2: Convert to fraction form
    21,760.35/32,642.79 = 9,281.69/x
  3. Step 3: Cross multiply
    21,760.35x = 32,642.79 × 9,281.69
  4. Step 4: Simplify right side
    21,760.35x = 302,980,257.52
  5. Step 5: Solve for x
    x = 302,980,257.52/21,760.35
  6. Step 6: Final answer
    x = 13,923.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.