Home / 28,264.92-39,007.62-15,689.58

Finding the Fourth Proportional to 28,264.92, 39,007.62 and 15,689.58

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Solution

The fourth proportional to 28,264.92, 39,007.62 and 15,689.58 is: 21,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.92 : 39,007.62 = 15,689.58 : x
  2. Step 2: Convert to fraction form
    28,264.92/39,007.62 = 15,689.58/x
  3. Step 3: Cross multiply
    28,264.92x = 39,007.62 × 15,689.58
  4. Step 4: Simplify right side
    28,264.92x = 612,013,174.60
  5. Step 5: Solve for x
    x = 612,013,174.60/28,264.92
  6. Step 6: Final answer
    x = 21,652.75

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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.