Home / 38,639.14-57,987.90-28,277.62

Finding the Fourth Proportional to 38,639.14, 57,987.90 and 28,277.62

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Solution

The fourth proportional to 38,639.14, 57,987.90 and 28,277.62 is: 42,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.14 : 57,987.90 = 28,277.62 : x
  2. Step 2: Convert to fraction form
    38,639.14/57,987.90 = 28,277.62/x
  3. Step 3: Cross multiply
    38,639.14x = 57,987.90 × 28,277.62
  4. Step 4: Simplify right side
    38,639.14x = 1,639,759,800.80
  5. Step 5: Solve for x
    x = 1,639,759,800.80/38,639.14
  6. Step 6: Final answer
    x = 42,437.79

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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.