Home / 39,822.47-59,742.35-12,119.75

Finding the Fourth Proportional to 39,822.47, 59,742.35 and 12,119.75

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Solution

The fourth proportional to 39,822.47, 59,742.35 and 12,119.75 is: 18,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,822.47 : 59,742.35 = 12,119.75 : x
  2. Step 2: Convert to fraction form
    39,822.47/59,742.35 = 12,119.75/x
  3. Step 3: Cross multiply
    39,822.47x = 59,742.35 × 12,119.75
  4. Step 4: Simplify right side
    39,822.47x = 724,062,285.81
  5. Step 5: Solve for x
    x = 724,062,285.81/39,822.47
  6. Step 6: Final answer
    x = 18,182.25

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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.