Home / 28,718.73-39,630.42-15,972.66

Finding the Fourth Proportional to 28,718.73, 39,630.42 and 15,972.66

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Solution

The fourth proportional to 28,718.73, 39,630.42 and 15,972.66 is: 22,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.73 : 39,630.42 = 15,972.66 : x
  2. Step 2: Convert to fraction form
    28,718.73/39,630.42 = 15,972.66/x
  3. Step 3: Cross multiply
    28,718.73x = 39,630.42 × 15,972.66
  4. Step 4: Simplify right side
    28,718.73x = 633,003,224.32
  5. Step 5: Solve for x
    x = 633,003,224.32/28,718.73
  6. Step 6: Final answer
    x = 22,041.48

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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.