Home / 21,061.86-29,065.38-11,630.46

Finding the Fourth Proportional to 21,061.86, 29,065.38 and 11,630.46

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Solution

The fourth proportional to 21,061.86, 29,065.38 and 11,630.46 is: 16,050.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061.86 : 29,065.38 = 11,630.46 : x
  2. Step 2: Convert to fraction form
    21,061.86/29,065.38 = 11,630.46/x
  3. Step 3: Cross multiply
    21,061.86x = 29,065.38 × 11,630.46
  4. Step 4: Simplify right side
    21,061.86x = 338,043,739.47
  5. Step 5: Solve for x
    x = 338,043,739.47/21,061.86
  6. Step 6: Final answer
    x = 16,050.04

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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.