Home / 40,931.88-56,425.86-28,958.28

Finding the Fourth Proportional to 40,931.88, 56,425.86 and 28,958.28

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Solution

The fourth proportional to 40,931.88, 56,425.86 and 28,958.28 is: 39,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,931.88 : 56,425.86 = 28,958.28 : x
  2. Step 2: Convert to fraction form
    40,931.88/56,425.86 = 28,958.28/x
  3. Step 3: Cross multiply
    40,931.88x = 56,425.86 × 28,958.28
  4. Step 4: Simplify right side
    40,931.88x = 1,633,995,853.12
  5. Step 5: Solve for x
    x = 1,633,995,853.12/40,931.88
  6. Step 6: Final answer
    x = 39,919.88

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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.