Home / 27,984.16-38,618.04-15,408.88

Finding the Fourth Proportional to 27,984.16, 38,618.04 and 15,408.88

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Solution

The fourth proportional to 27,984.16, 38,618.04 and 15,408.88 is: 21,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.16 : 38,618.04 = 15,408.88 : x
  2. Step 2: Convert to fraction form
    27,984.16/38,618.04 = 15,408.88/x
  3. Step 3: Cross multiply
    27,984.16x = 38,618.04 × 15,408.88
  4. Step 4: Simplify right side
    27,984.16x = 595,060,744.20
  5. Step 5: Solve for x
    x = 595,060,744.20/27,984.16
  6. Step 6: Final answer
    x = 21,264.20

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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.