Home / 29,311.12-40,448.93-15,882.06

Finding the Fourth Proportional to 29,311.12, 40,448.93 and 15,882.06

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Solution

The fourth proportional to 29,311.12, 40,448.93 and 15,882.06 is: 21,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,311.12 : 40,448.93 = 15,882.06 : x
  2. Step 2: Convert to fraction form
    29,311.12/40,448.93 = 15,882.06/x
  3. Step 3: Cross multiply
    29,311.12x = 40,448.93 × 15,882.06
  4. Step 4: Simplify right side
    29,311.12x = 642,412,333.20
  5. Step 5: Solve for x
    x = 642,412,333.20/29,311.12
  6. Step 6: Final answer
    x = 21,917.02

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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.