Home / 28,203.40-42,305.10-10,673.80

Finding the Fourth Proportional to 28,203.40, 42,305.10 and 10,673.80

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Solution

The fourth proportional to 28,203.40, 42,305.10 and 10,673.80 is: 16,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.40 : 42,305.10 = 10,673.80 : x
  2. Step 2: Convert to fraction form
    28,203.40/42,305.10 = 10,673.80/x
  3. Step 3: Cross multiply
    28,203.40x = 42,305.10 × 10,673.80
  4. Step 4: Simplify right side
    28,203.40x = 451,556,176.38
  5. Step 5: Solve for x
    x = 451,556,176.38/28,203.40
  6. Step 6: Final answer
    x = 16,010.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.