Home / 28,655.73-42,983.38-15,591.15

Finding the Fourth Proportional to 28,655.73, 42,983.38 and 15,591.15

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Solution

The fourth proportional to 28,655.73, 42,983.38 and 15,591.15 is: 23,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.73 : 42,983.38 = 15,591.15 : x
  2. Step 2: Convert to fraction form
    28,655.73/42,983.38 = 15,591.15/x
  3. Step 3: Cross multiply
    28,655.73x = 42,983.38 × 15,591.15
  4. Step 4: Simplify right side
    28,655.73x = 670,160,325.09
  5. Step 5: Solve for x
    x = 670,160,325.09/28,655.73
  6. Step 6: Final answer
    x = 23,386.61

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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.