Home / 28,780.13-39,715.98-16,033.30

Finding the Fourth Proportional to 28,780.13, 39,715.98 and 16,033.30

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Solution

The fourth proportional to 28,780.13, 39,715.98 and 16,033.30 is: 22,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.13 : 39,715.98 = 16,033.30 : x
  2. Step 2: Convert to fraction form
    28,780.13/39,715.98 = 16,033.30/x
  3. Step 3: Cross multiply
    28,780.13x = 39,715.98 × 16,033.30
  4. Step 4: Simplify right side
    28,780.13x = 636,778,122.84
  5. Step 5: Solve for x
    x = 636,778,122.84/28,780.13
  6. Step 6: Final answer
    x = 22,125.61

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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.