Home / 28,366.77-39,144.61-15,617.46

Finding the Fourth Proportional to 28,366.77, 39,144.61 and 15,617.46

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Solution

The fourth proportional to 28,366.77, 39,144.61 and 15,617.46 is: 21,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.77 : 39,144.61 = 15,617.46 : x
  2. Step 2: Convert to fraction form
    28,366.77/39,144.61 = 15,617.46/x
  3. Step 3: Cross multiply
    28,366.77x = 39,144.61 × 15,617.46
  4. Step 4: Simplify right side
    28,366.77x = 611,339,380.89
  5. Step 5: Solve for x
    x = 611,339,380.89/28,366.77
  6. Step 6: Final answer
    x = 21,551.25

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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.