Home / 29,345.12-43,990.86-15,288.56

Finding the Fourth Proportional to 29,345.12, 43,990.86 and 15,288.56

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Solution

The fourth proportional to 29,345.12, 43,990.86 and 15,288.56 is: 22,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,345.12 : 43,990.86 = 15,288.56 : x
  2. Step 2: Convert to fraction form
    29,345.12/43,990.86 = 15,288.56/x
  3. Step 3: Cross multiply
    29,345.12x = 43,990.86 × 15,288.56
  4. Step 4: Simplify right side
    29,345.12x = 672,556,902.56
  5. Step 5: Solve for x
    x = 672,556,902.56/29,345.12
  6. Step 6: Final answer
    x = 22,918.87

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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.