Home / 28,825.12-39,780.50-16,250.68

Finding the Fourth Proportional to 28,825.12, 39,780.50 and 16,250.68

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Solution

The fourth proportional to 28,825.12, 39,780.50 and 16,250.68 is: 22,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.12 : 39,780.50 = 16,250.68 : x
  2. Step 2: Convert to fraction form
    28,825.12/39,780.50 = 16,250.68/x
  3. Step 3: Cross multiply
    28,825.12x = 39,780.50 × 16,250.68
  4. Step 4: Simplify right side
    28,825.12x = 646,460,175.74
  5. Step 5: Solve for x
    x = 646,460,175.74/28,825.12
  6. Step 6: Final answer
    x = 22,426.97

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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.