Home / 28,499.84-39,335.19-18,792.21

Finding the Fourth Proportional to 28,499.84, 39,335.19 and 18,792.21

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Solution

The fourth proportional to 28,499.84, 39,335.19 and 18,792.21 is: 25,936.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.84 : 39,335.19 = 18,792.21 : x
  2. Step 2: Convert to fraction form
    28,499.84/39,335.19 = 18,792.21/x
  3. Step 3: Cross multiply
    28,499.84x = 39,335.19 × 18,792.21
  4. Step 4: Simplify right side
    28,499.84x = 739,195,150.87
  5. Step 5: Solve for x
    x = 739,195,150.87/28,499.84
  6. Step 6: Final answer
    x = 25,936.82

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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.