Home / 31,340.64-43,253.04-17,909.30

Finding the Fourth Proportional to 31,340.64, 43,253.04 and 17,909.30

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Solution

The fourth proportional to 31,340.64, 43,253.04 and 17,909.30 is: 24,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.64 : 43,253.04 = 17,909.30 : x
  2. Step 2: Convert to fraction form
    31,340.64/43,253.04 = 17,909.30/x
  3. Step 3: Cross multiply
    31,340.64x = 43,253.04 × 17,909.30
  4. Step 4: Simplify right side
    31,340.64x = 774,631,743.82
  5. Step 5: Solve for x
    x = 774,631,743.82/31,340.64
  6. Step 6: Final answer
    x = 24,716.53

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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.