Home / 38,454.08-57,686.88-12,150.40

Finding the Fourth Proportional to 38,454.08, 57,686.88 and 12,150.40

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Solution

The fourth proportional to 38,454.08, 57,686.88 and 12,150.40 is: 18,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.08 : 57,686.88 = 12,150.40 : x
  2. Step 2: Convert to fraction form
    38,454.08/57,686.88 = 12,150.40/x
  3. Step 3: Cross multiply
    38,454.08x = 57,686.88 × 12,150.40
  4. Step 4: Simplify right side
    38,454.08x = 700,918,666.75
  5. Step 5: Solve for x
    x = 700,918,666.75/38,454.08
  6. Step 6: Final answer
    x = 18,227.42

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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.