Home / 28,053.20-42,079.86-11,401.49

Finding the Fourth Proportional to 28,053.20, 42,079.86 and 11,401.49

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Solution

The fourth proportional to 28,053.20, 42,079.86 and 11,401.49 is: 17,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.20 : 42,079.86 = 11,401.49 : x
  2. Step 2: Convert to fraction form
    28,053.20/42,079.86 = 11,401.49/x
  3. Step 3: Cross multiply
    28,053.20x = 42,079.86 × 11,401.49
  4. Step 4: Simplify right side
    28,053.20x = 479,773,102.99
  5. Step 5: Solve for x
    x = 479,773,102.99/28,053.20
  6. Step 6: Final answer
    x = 17,102.26

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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.