Home / 39,872.16-59,806.08-12,168

Finding the Fourth Proportional to 39,872.16, 59,806.08 and 12,168

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Solution

The fourth proportional to 39,872.16, 59,806.08 and 12,168 is: 18,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.16 : 59,806.08 = 12,168 : x
  2. Step 2: Convert to fraction form
    39,872.16/59,806.08 = 12,168/x
  3. Step 3: Cross multiply
    39,872.16x = 59,806.08 × 12,168
  4. Step 4: Simplify right side
    39,872.16x = 727,720,381.44
  5. Step 5: Solve for x
    x = 727,720,381.44/39,872.16
  6. Step 6: Final answer
    x = 18,251.34

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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.