Home / 27,983.40-38,617.08-15,408

Finding the Fourth Proportional to 27,983.40, 38,617.08 and 15,408

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Solution

The fourth proportional to 27,983.40, 38,617.08 and 15,408 is: 21,263.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,983.40 : 38,617.08 = 15,408 : x
  2. Step 2: Convert to fraction form
    27,983.40/38,617.08 = 15,408/x
  3. Step 3: Cross multiply
    27,983.40x = 38,617.08 × 15,408
  4. Step 4: Simplify right side
    27,983.40x = 595,011,968.64
  5. Step 5: Solve for x
    x = 595,011,968.64/27,983.40
  6. Step 6: Final answer
    x = 21,263.03

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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.