Home / 27,735.61-38,275.43-15,160.36

Finding the Fourth Proportional to 27,735.61, 38,275.43 and 15,160.36

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Solution

The fourth proportional to 27,735.61, 38,275.43 and 15,160.36 is: 20,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.61 : 38,275.43 = 15,160.36 : x
  2. Step 2: Convert to fraction form
    27,735.61/38,275.43 = 15,160.36/x
  3. Step 3: Cross multiply
    27,735.61x = 38,275.43 × 15,160.36
  4. Step 4: Simplify right side
    27,735.61x = 580,269,297.95
  5. Step 5: Solve for x
    x = 580,269,297.95/27,735.61
  6. Step 6: Final answer
    x = 20,921.45

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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.