Home / 43,331.13-64,999.02-12,168.81

Finding the Fourth Proportional to 43,331.13, 64,999.02 and 12,168.81

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Solution

The fourth proportional to 43,331.13, 64,999.02 and 12,168.81 is: 18,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,331.13 : 64,999.02 = 12,168.81 : x
  2. Step 2: Convert to fraction form
    43,331.13/64,999.02 = 12,168.81/x
  3. Step 3: Cross multiply
    43,331.13x = 64,999.02 × 12,168.81
  4. Step 4: Simplify right side
    43,331.13x = 790,960,724.57
  5. Step 5: Solve for x
    x = 790,960,724.57/43,331.13
  6. Step 6: Final answer
    x = 18,253.87

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1.5x scale

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.