Home / 28,215.66-42,316.50-11,580.42

Finding the Fourth Proportional to 28,215.66, 42,316.50 and 11,580.42

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Solution

The fourth proportional to 28,215.66, 42,316.50 and 11,580.42 is: 17,367.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.66 : 42,316.50 = 11,580.42 : x
  2. Step 2: Convert to fraction form
    28,215.66/42,316.50 = 11,580.42/x
  3. Step 3: Cross multiply
    28,215.66x = 42,316.50 × 11,580.42
  4. Step 4: Simplify right side
    28,215.66x = 490,042,842.93
  5. Step 5: Solve for x
    x = 490,042,842.93/28,215.66
  6. Step 6: Final answer
    x = 17,367.76

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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.