Home / 38,509.08-57,765.68-12,215.92

Finding the Fourth Proportional to 38,509.08, 57,765.68 and 12,215.92

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Solution

The fourth proportional to 38,509.08, 57,765.68 and 12,215.92 is: 18,324.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.08 : 57,765.68 = 12,215.92 : x
  2. Step 2: Convert to fraction form
    38,509.08/57,765.68 = 12,215.92/x
  3. Step 3: Cross multiply
    38,509.08x = 57,765.68 × 12,215.92
  4. Step 4: Simplify right side
    38,509.08x = 705,660,925.63
  5. Step 5: Solve for x
    x = 705,660,925.63/38,509.08
  6. Step 6: Final answer
    x = 18,324.53

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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.