Home / 42,245.68-63,370.08-18,872.32

Finding the Fourth Proportional to 42,245.68, 63,370.08 and 18,872.32

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Solution

The fourth proportional to 42,245.68, 63,370.08 and 18,872.32 is: 28,309.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,245.68 : 63,370.08 = 18,872.32 : x
  2. Step 2: Convert to fraction form
    42,245.68/63,370.08 = 18,872.32/x
  3. Step 3: Cross multiply
    42,245.68x = 63,370.08 × 18,872.32
  4. Step 4: Simplify right side
    42,245.68x = 1,195,940,428.19
  5. Step 5: Solve for x
    x = 1,195,940,428.19/42,245.68
  6. Step 6: Final answer
    x = 28,309.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.