Home / 28,050.05-42,076.92-10,520.33

Finding the Fourth Proportional to 28,050.05, 42,076.92 and 10,520.33

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Solution

The fourth proportional to 28,050.05, 42,076.92 and 10,520.33 is: 15,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.05 : 42,076.92 = 10,520.33 : x
  2. Step 2: Convert to fraction form
    28,050.05/42,076.92 = 10,520.33/x
  3. Step 3: Cross multiply
    28,050.05x = 42,076.92 × 10,520.33
  4. Step 4: Simplify right side
    28,050.05x = 442,663,090.36
  5. Step 5: Solve for x
    x = 442,663,090.36/28,050.05
  6. Step 6: Final answer
    x = 15,781.19

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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.