Home / 21,681.39-32,521.33-9,193.38

Finding the Fourth Proportional to 21,681.39, 32,521.33 and 9,193.38

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Solution

The fourth proportional to 21,681.39, 32,521.33 and 9,193.38 is: 13,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.39 : 32,521.33 = 9,193.38 : x
  2. Step 2: Convert to fraction form
    21,681.39/32,521.33 = 9,193.38/x
  3. Step 3: Cross multiply
    21,681.39x = 32,521.33 × 9,193.38
  4. Step 4: Simplify right side
    21,681.39x = 298,980,944.80
  5. Step 5: Solve for x
    x = 298,980,944.80/21,681.39
  6. Step 6: Final answer
    x = 13,789.75

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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.