Home / 27,282.60-37,688.22-21,074.76

Finding the Fourth Proportional to 27,282.60, 37,688.22 and 21,074.76

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Solution

The fourth proportional to 27,282.60, 37,688.22 and 21,074.76 is: 29,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,282.60 : 37,688.22 = 21,074.76 : x
  2. Step 2: Convert to fraction form
    27,282.60/37,688.22 = 21,074.76/x
  3. Step 3: Cross multiply
    27,282.60x = 37,688.22 × 21,074.76
  4. Step 4: Simplify right side
    27,282.60x = 794,270,191.33
  5. Step 5: Solve for x
    x = 794,270,191.33/27,282.60
  6. Step 6: Final answer
    x = 29,112.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.