Home / 28,976.48-39,986.88-17,037.20

Finding the Fourth Proportional to 28,976.48, 39,986.88 and 17,037.20

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Solution

The fourth proportional to 28,976.48, 39,986.88 and 17,037.20 is: 23,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.48 : 39,986.88 = 17,037.20 : x
  2. Step 2: Convert to fraction form
    28,976.48/39,986.88 = 17,037.20/x
  3. Step 3: Cross multiply
    28,976.48x = 39,986.88 × 17,037.20
  4. Step 4: Simplify right side
    28,976.48x = 681,264,471.94
  5. Step 5: Solve for x
    x = 681,264,471.94/28,976.48
  6. Step 6: Final answer
    x = 23,510.95

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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.