Home / 28,335.23-42,471.66-11,686.16

Finding the Fourth Proportional to 28,335.23, 42,471.66 and 11,686.16

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Solution

The fourth proportional to 28,335.23, 42,471.66 and 11,686.16 is: 17,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.23 : 42,471.66 = 11,686.16 : x
  2. Step 2: Convert to fraction form
    28,335.23/42,471.66 = 11,686.16/x
  3. Step 3: Cross multiply
    28,335.23x = 42,471.66 × 11,686.16
  4. Step 4: Simplify right side
    28,335.23x = 496,330,401.87
  5. Step 5: Solve for x
    x = 496,330,401.87/28,335.23
  6. Step 6: Final answer
    x = 17,516.37

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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.