Home / 28,756.87-39,675.25-17,422.74

Finding the Fourth Proportional to 28,756.87, 39,675.25 and 17,422.74

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Solution

The fourth proportional to 28,756.87, 39,675.25 and 17,422.74 is: 24,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.87 : 39,675.25 = 17,422.74 : x
  2. Step 2: Convert to fraction form
    28,756.87/39,675.25 = 17,422.74/x
  3. Step 3: Cross multiply
    28,756.87x = 39,675.25 × 17,422.74
  4. Step 4: Simplify right side
    28,756.87x = 691,251,478.07
  5. Step 5: Solve for x
    x = 691,251,478.07/28,756.87
  6. Step 6: Final answer
    x = 24,037.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.