Home / 27,518.02-37,974.89-15,581.38

Finding the Fourth Proportional to 27,518.02, 37,974.89 and 15,581.38

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Solution

The fourth proportional to 27,518.02, 37,974.89 and 15,581.38 is: 21,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,518.02 : 37,974.89 = 15,581.38 : x
  2. Step 2: Convert to fraction form
    27,518.02/37,974.89 = 15,581.38/x
  3. Step 3: Cross multiply
    27,518.02x = 37,974.89 × 15,581.38
  4. Step 4: Simplify right side
    27,518.02x = 591,701,135.56
  5. Step 5: Solve for x
    x = 591,701,135.56/27,518.02
  6. Step 6: Final answer
    x = 21,502.31

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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.