Home / 40,163.13-55,444.41-28,236.69

Finding the Fourth Proportional to 40,163.13, 55,444.41 and 28,236.69

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Solution

The fourth proportional to 40,163.13, 55,444.41 and 28,236.69 is: 38,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,163.13 : 55,444.41 = 28,236.69 : x
  2. Step 2: Convert to fraction form
    40,163.13/55,444.41 = 28,236.69/x
  3. Step 3: Cross multiply
    40,163.13x = 55,444.41 × 28,236.69
  4. Step 4: Simplify right side
    40,163.13x = 1,565,566,617.40
  5. Step 5: Solve for x
    x = 1,565,566,617.40/40,163.13
  6. Step 6: Final answer
    x = 38,980.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.