Home / 28,707.32-39,617.90-15,960.61

Finding the Fourth Proportional to 28,707.32, 39,617.90 and 15,960.61

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Solution

The fourth proportional to 28,707.32, 39,617.90 and 15,960.61 is: 22,026.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.32 : 39,617.90 = 15,960.61 : x
  2. Step 2: Convert to fraction form
    28,707.32/39,617.90 = 15,960.61/x
  3. Step 3: Cross multiply
    28,707.32x = 39,617.90 × 15,960.61
  4. Step 4: Simplify right side
    28,707.32x = 632,325,850.92
  5. Step 5: Solve for x
    x = 632,325,850.92/28,707.32
  6. Step 6: Final answer
    x = 22,026.64

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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.