Home / 21,331.48-29,437.45-11,900.04

Finding the Fourth Proportional to 21,331.48, 29,437.45 and 11,900.04

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Solution

The fourth proportional to 21,331.48, 29,437.45 and 11,900.04 is: 16,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.48 : 29,437.45 = 11,900.04 : x
  2. Step 2: Convert to fraction form
    21,331.48/29,437.45 = 11,900.04/x
  3. Step 3: Cross multiply
    21,331.48x = 29,437.45 × 11,900.04
  4. Step 4: Simplify right side
    21,331.48x = 350,306,808.62
  5. Step 5: Solve for x
    x = 350,306,808.62/21,331.48
  6. Step 6: Final answer
    x = 16,422.06

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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.