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Finding the Fourth Proportional to 27,885.60, 41,828.40 and 9,417.60

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Solution

The fourth proportional to 27,885.60, 41,828.40 and 9,417.60 is: 14,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.60 : 41,828.40 = 9,417.60 : x
  2. Step 2: Convert to fraction form
    27,885.60/41,828.40 = 9,417.60/x
  3. Step 3: Cross multiply
    27,885.60x = 41,828.40 × 9,417.60
  4. Step 4: Simplify right side
    27,885.60x = 393,923,139.84
  5. Step 5: Solve for x
    x = 393,923,139.84/27,885.60
  6. Step 6: Final answer
    x = 14,126.40

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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.