Home / 28,001.20-42,003.42-11,360.56

Finding the Fourth Proportional to 28,001.20, 42,003.42 and 11,360.56

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Solution

The fourth proportional to 28,001.20, 42,003.42 and 11,360.56 is: 17,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.20 : 42,003.42 = 11,360.56 : x
  2. Step 2: Convert to fraction form
    28,001.20/42,003.42 = 11,360.56/x
  3. Step 3: Cross multiply
    28,001.20x = 42,003.42 × 11,360.56
  4. Step 4: Simplify right side
    28,001.20x = 477,182,373.12
  5. Step 5: Solve for x
    x = 477,182,373.12/28,001.20
  6. Step 6: Final answer
    x = 17,041.50

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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.