Home / 28,174.61-42,261.93-11,531.76

Finding the Fourth Proportional to 28,174.61, 42,261.93 and 11,531.76

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Solution

The fourth proportional to 28,174.61, 42,261.93 and 11,531.76 is: 17,297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.61 : 42,261.93 = 11,531.76 : x
  2. Step 2: Convert to fraction form
    28,174.61/42,261.93 = 11,531.76/x
  3. Step 3: Cross multiply
    28,174.61x = 42,261.93 × 11,531.76
  4. Step 4: Simplify right side
    28,174.61x = 487,354,433.90
  5. Step 5: Solve for x
    x = 487,354,433.90/28,174.61
  6. Step 6: Final answer
    x = 17,297.65

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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.