Home / 31,072.32-43,177.68-30,752.64

Finding the Fourth Proportional to 31,072.32, 43,177.68 and 30,752.64

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Solution

The fourth proportional to 31,072.32, 43,177.68 and 30,752.64 is: 42,733.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,072.32 : 43,177.68 = 30,752.64 : x
  2. Step 2: Convert to fraction form
    31,072.32/43,177.68 = 30,752.64/x
  3. Step 3: Cross multiply
    31,072.32x = 43,177.68 × 30,752.64
  4. Step 4: Simplify right side
    31,072.32x = 1,327,827,649.08
  5. Step 5: Solve for x
    x = 1,327,827,649.08/31,072.32
  6. Step 6: Final answer
    x = 42,733.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.