Home / 38,700.85-58,067.71-21,150.18

Finding the Fourth Proportional to 38,700.85, 58,067.71 and 21,150.18

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Solution

The fourth proportional to 38,700.85, 58,067.71 and 21,150.18 is: 31,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,700.85 : 58,067.71 = 21,150.18 : x
  2. Step 2: Convert to fraction form
    38,700.85/58,067.71 = 21,150.18/x
  3. Step 3: Cross multiply
    38,700.85x = 58,067.71 × 21,150.18
  4. Step 4: Simplify right side
    38,700.85x = 1,228,142,367.03
  5. Step 5: Solve for x
    x = 1,228,142,367.03/38,700.85
  6. Step 6: Final answer
    x = 31,734.25

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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.