Home / 39,621.16-59,440.38-11,917

Finding the Fourth Proportional to 39,621.16, 59,440.38 and 11,917

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Solution

The fourth proportional to 39,621.16, 59,440.38 and 11,917 is: 17,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,621.16 : 59,440.38 = 11,917 : x
  2. Step 2: Convert to fraction form
    39,621.16/59,440.38 = 11,917/x
  3. Step 3: Cross multiply
    39,621.16x = 59,440.38 × 11,917
  4. Step 4: Simplify right side
    39,621.16x = 708,351,008.46
  5. Step 5: Solve for x
    x = 708,351,008.46/39,621.16
  6. Step 6: Final answer
    x = 17,878.10

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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.