Home / 27,255.30-40,877.55-13,215.30

Finding the Fourth Proportional to 27,255.30, 40,877.55 and 13,215.30

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Solution

The fourth proportional to 27,255.30, 40,877.55 and 13,215.30 is: 19,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,255.30 : 40,877.55 = 13,215.30 : x
  2. Step 2: Convert to fraction form
    27,255.30/40,877.55 = 13,215.30/x
  3. Step 3: Cross multiply
    27,255.30x = 40,877.55 × 13,215.30
  4. Step 4: Simplify right side
    27,255.30x = 540,209,086.52
  5. Step 5: Solve for x
    x = 540,209,086.52/27,255.30
  6. Step 6: Final answer
    x = 19,820.33

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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.