Home / 27,617.30-38,112.36-15,681.02

Finding the Fourth Proportional to 27,617.30, 38,112.36 and 15,681.02

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Solution

The fourth proportional to 27,617.30, 38,112.36 and 15,681.02 is: 21,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.30 : 38,112.36 = 15,681.02 : x
  2. Step 2: Convert to fraction form
    27,617.30/38,112.36 = 15,681.02/x
  3. Step 3: Cross multiply
    27,617.30x = 38,112.36 × 15,681.02
  4. Step 4: Simplify right side
    27,617.30x = 597,640,679.41
  5. Step 5: Solve for x
    x = 597,640,679.41/27,617.30
  6. Step 6: Final answer
    x = 21,640.08

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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.