Home / 38,212.40-57,318.60-28,881.20

Finding the Fourth Proportional to 38,212.40, 57,318.60 and 28,881.20

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Solution

The fourth proportional to 38,212.40, 57,318.60 and 28,881.20 is: 43,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,212.40 : 57,318.60 = 28,881.20 : x
  2. Step 2: Convert to fraction form
    38,212.40/57,318.60 = 28,881.20/x
  3. Step 3: Cross multiply
    38,212.40x = 57,318.60 × 28,881.20
  4. Step 4: Simplify right side
    38,212.40x = 1,655,429,950.32
  5. Step 5: Solve for x
    x = 1,655,429,950.32/38,212.40
  6. Step 6: Final answer
    x = 43,321.80

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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.