Home / 40,393.68-55,625.66-31,426.08

Finding the Fourth Proportional to 40,393.68, 55,625.66 and 31,426.08

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Solution

The fourth proportional to 40,393.68, 55,625.66 and 31,426.08 is: 43,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,393.68 : 55,625.66 = 31,426.08 : x
  2. Step 2: Convert to fraction form
    40,393.68/55,625.66 = 31,426.08/x
  3. Step 3: Cross multiply
    40,393.68x = 55,625.66 × 31,426.08
  4. Step 4: Simplify right side
    40,393.68x = 1,748,096,441.21
  5. Step 5: Solve for x
    x = 1,748,096,441.21/40,393.68
  6. Step 6: Final answer
    x = 43,276.48

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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.