Home / 39,902.15-59,834.84-11,812.16

Finding the Fourth Proportional to 39,902.15, 59,834.84 and 11,812.16

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Solution

The fourth proportional to 39,902.15, 59,834.84 and 11,812.16 is: 17,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,902.15 : 59,834.84 = 11,812.16 : x
  2. Step 2: Convert to fraction form
    39,902.15/59,834.84 = 11,812.16/x
  3. Step 3: Cross multiply
    39,902.15x = 59,834.84 × 11,812.16
  4. Step 4: Simplify right side
    39,902.15x = 706,778,434.01
  5. Step 5: Solve for x
    x = 706,778,434.01/39,902.15
  6. Step 6: Final answer
    x = 17,712.79

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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.