Home / 21,376.48-32,065.28-10,129.18

Finding the Fourth Proportional to 21,376.48, 32,065.28 and 10,129.18

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Solution

The fourth proportional to 21,376.48, 32,065.28 and 10,129.18 is: 15,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.48 : 32,065.28 = 10,129.18 : x
  2. Step 2: Convert to fraction form
    21,376.48/32,065.28 = 10,129.18/x
  3. Step 3: Cross multiply
    21,376.48x = 32,065.28 × 10,129.18
  4. Step 4: Simplify right side
    21,376.48x = 324,794,992.87
  5. Step 5: Solve for x
    x = 324,794,992.87/21,376.48
  6. Step 6: Final answer
    x = 15,194.04

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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.