Home / 28,630.50-39,510.19-15,883.93

Finding the Fourth Proportional to 28,630.50, 39,510.19 and 15,883.93

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Solution

The fourth proportional to 28,630.50, 39,510.19 and 15,883.93 is: 21,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.50 : 39,510.19 = 15,883.93 : x
  2. Step 2: Convert to fraction form
    28,630.50/39,510.19 = 15,883.93/x
  3. Step 3: Cross multiply
    28,630.50x = 39,510.19 × 15,883.93
  4. Step 4: Simplify right side
    28,630.50x = 627,577,092.25
  5. Step 5: Solve for x
    x = 627,577,092.25/28,630.50
  6. Step 6: Final answer
    x = 21,919.88

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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.