Home / 21,342.76-31,998.27-10,238.87

Finding the Fourth Proportional to 21,342.76, 31,998.27 and 10,238.87

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Solution

The fourth proportional to 21,342.76, 31,998.27 and 10,238.87 is: 15,350.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.76 : 31,998.27 = 10,238.87 : x
  2. Step 2: Convert to fraction form
    21,342.76/31,998.27 = 10,238.87/x
  3. Step 3: Cross multiply
    21,342.76x = 31,998.27 × 10,238.87
  4. Step 4: Simplify right side
    21,342.76x = 327,626,126.75
  5. Step 5: Solve for x
    x = 327,626,126.75/21,342.76
  6. Step 6: Final answer
    x = 15,350.69

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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.