Home / 39,827.20-59,740.08-12,125.20

Finding the Fourth Proportional to 39,827.20, 59,740.08 and 12,125.20

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Solution

The fourth proportional to 39,827.20, 59,740.08 and 12,125.20 is: 18,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,827.20 : 59,740.08 = 12,125.20 : x
  2. Step 2: Convert to fraction form
    39,827.20/59,740.08 = 12,125.20/x
  3. Step 3: Cross multiply
    39,827.20x = 59,740.08 × 12,125.20
  4. Step 4: Simplify right side
    39,827.20x = 724,360,418.02
  5. Step 5: Solve for x
    x = 724,360,418.02/39,827.20
  6. Step 6: Final answer
    x = 18,187.58

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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.