Home / 38,478.92-57,612.08-19,718.56

Finding the Fourth Proportional to 38,478.92, 57,612.08 and 19,718.56

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Solution

The fourth proportional to 38,478.92, 57,612.08 and 19,718.56 is: 29,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.92 : 57,612.08 = 19,718.56 : x
  2. Step 2: Convert to fraction form
    38,478.92/57,612.08 = 19,718.56/x
  3. Step 3: Cross multiply
    38,478.92x = 57,612.08 × 19,718.56
  4. Step 4: Simplify right side
    38,478.92x = 1,136,027,256.20
  5. Step 5: Solve for x
    x = 1,136,027,256.20/38,478.92
  6. Step 6: Final answer
    x = 29,523.37

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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.