Home / 27,983.64-38,617.11-15,408.12

Finding the Fourth Proportional to 27,983.64, 38,617.11 and 15,408.12

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Solution

The fourth proportional to 27,983.64, 38,617.11 and 15,408.12 is: 21,263.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,983.64 : 38,617.11 = 15,408.12 : x
  2. Step 2: Convert to fraction form
    27,983.64/38,617.11 = 15,408.12/x
  3. Step 3: Cross multiply
    27,983.64x = 38,617.11 × 15,408.12
  4. Step 4: Simplify right side
    27,983.64x = 595,017,064.93
  5. Step 5: Solve for x
    x = 595,017,064.93/27,983.64
  6. Step 6: Final answer
    x = 21,263.03

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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.