Home / 21,601.13-32,401.69-5,185.13

Finding the Fourth Proportional to 21,601.13, 32,401.69 and 5,185.13

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Solution

The fourth proportional to 21,601.13, 32,401.69 and 5,185.13 is: 7,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.13 : 32,401.69 = 5,185.13 : x
  2. Step 2: Convert to fraction form
    21,601.13/32,401.69 = 5,185.13/x
  3. Step 3: Cross multiply
    21,601.13x = 32,401.69 × 5,185.13
  4. Step 4: Simplify right side
    21,601.13x = 168,006,799.90
  5. Step 5: Solve for x
    x = 168,006,799.90/21,601.13
  6. Step 6: Final answer
    x = 7,777.69

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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.