Home / 27,984.21-38,618.10-15,408.96

Finding the Fourth Proportional to 27,984.21, 38,618.10 and 15,408.96

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Solution

The fourth proportional to 27,984.21, 38,618.10 and 15,408.96 is: 21,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.21 : 38,618.10 = 15,408.96 : x
  2. Step 2: Convert to fraction form
    27,984.21/38,618.10 = 15,408.96/x
  3. Step 3: Cross multiply
    27,984.21x = 38,618.10 × 15,408.96
  4. Step 4: Simplify right side
    27,984.21x = 595,064,758.18
  5. Step 5: Solve for x
    x = 595,064,758.18/27,984.21
  6. Step 6: Final answer
    x = 21,264.30

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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.