Home / 27,938.08-41,918.28-10,422.64

Finding the Fourth Proportional to 27,938.08, 41,918.28 and 10,422.64

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Solution

The fourth proportional to 27,938.08, 41,918.28 and 10,422.64 is: 15,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.08 : 41,918.28 = 10,422.64 : x
  2. Step 2: Convert to fraction form
    27,938.08/41,918.28 = 10,422.64/x
  3. Step 3: Cross multiply
    27,938.08x = 41,918.28 × 10,422.64
  4. Step 4: Simplify right side
    27,938.08x = 436,899,141.86
  5. Step 5: Solve for x
    x = 436,899,141.86/27,938.08
  6. Step 6: Final answer
    x = 15,638.12

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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.