Home / 28,750.80-39,676.10-16,003.71

Finding the Fourth Proportional to 28,750.80, 39,676.10 and 16,003.71

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Solution

The fourth proportional to 28,750.80, 39,676.10 and 16,003.71 is: 22,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.80 : 39,676.10 = 16,003.71 : x
  2. Step 2: Convert to fraction form
    28,750.80/39,676.10 = 16,003.71/x
  3. Step 3: Cross multiply
    28,750.80x = 39,676.10 × 16,003.71
  4. Step 4: Simplify right side
    28,750.80x = 634,964,718.31
  5. Step 5: Solve for x
    x = 634,964,718.31/28,750.80
  6. Step 6: Final answer
    x = 22,085.11

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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.