Home / 38,815.20-58,255.20-19,110.60

Finding the Fourth Proportional to 38,815.20, 58,255.20 and 19,110.60

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Solution

The fourth proportional to 38,815.20, 58,255.20 and 19,110.60 is: 28,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,815.20 : 58,255.20 = 19,110.60 : x
  2. Step 2: Convert to fraction form
    38,815.20/58,255.20 = 19,110.60/x
  3. Step 3: Cross multiply
    38,815.20x = 58,255.20 × 19,110.60
  4. Step 4: Simplify right side
    38,815.20x = 1,113,291,825.12
  5. Step 5: Solve for x
    x = 1,113,291,825.12/38,815.20
  6. Step 6: Final answer
    x = 28,681.85

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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.