Home / 28,076.05-42,077.55-11,416.66

Finding the Fourth Proportional to 28,076.05, 42,077.55 and 11,416.66

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Solution

The fourth proportional to 28,076.05, 42,077.55 and 11,416.66 is: 17,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.05 : 42,077.55 = 11,416.66 : x
  2. Step 2: Convert to fraction form
    28,076.05/42,077.55 = 11,416.66/x
  3. Step 3: Cross multiply
    28,076.05x = 42,077.55 × 11,416.66
  4. Step 4: Simplify right side
    28,076.05x = 480,385,081.98
  5. Step 5: Solve for x
    x = 480,385,081.98/28,076.05
  6. Step 6: Final answer
    x = 17,110.14

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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.