Home / 29,141.32-40,221.38-18,528.88

Finding the Fourth Proportional to 29,141.32, 40,221.38 and 18,528.88

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Solution

The fourth proportional to 29,141.32, 40,221.38 and 18,528.88 is: 25,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,141.32 : 40,221.38 = 18,528.88 : x
  2. Step 2: Convert to fraction form
    29,141.32/40,221.38 = 18,528.88/x
  3. Step 3: Cross multiply
    29,141.32x = 40,221.38 × 18,528.88
  4. Step 4: Simplify right side
    29,141.32x = 745,257,123.45
  5. Step 5: Solve for x
    x = 745,257,123.45/29,141.32
  6. Step 6: Final answer
    x = 25,573.90

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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.