Home / 28,780.30-39,718.70-17,450.83

Finding the Fourth Proportional to 28,780.30, 39,718.70 and 17,450.83

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Solution

The fourth proportional to 28,780.30, 39,718.70 and 17,450.83 is: 24,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.30 : 39,718.70 = 17,450.83 : x
  2. Step 2: Convert to fraction form
    28,780.30/39,718.70 = 17,450.83/x
  3. Step 3: Cross multiply
    28,780.30x = 39,718.70 × 17,450.83
  4. Step 4: Simplify right side
    28,780.30x = 693,124,281.52
  5. Step 5: Solve for x
    x = 693,124,281.52/28,780.30
  6. Step 6: Final answer
    x = 24,083.29

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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.