Home / 40,699.07-56,221.31-30,704.48

Finding the Fourth Proportional to 40,699.07, 56,221.31 and 30,704.48

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Solution

The fourth proportional to 40,699.07, 56,221.31 and 30,704.48 is: 42,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,699.07 : 56,221.31 = 30,704.48 : x
  2. Step 2: Convert to fraction form
    40,699.07/56,221.31 = 30,704.48/x
  3. Step 3: Cross multiply
    40,699.07x = 56,221.31 × 30,704.48
  4. Step 4: Simplify right side
    40,699.07x = 1,726,246,088.47
  5. Step 5: Solve for x
    x = 1,726,246,088.47/40,699.07
  6. Step 6: Final answer
    x = 42,414.88

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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.