Home / 27,420.30-41,130.45-7,702.20

Finding the Fourth Proportional to 27,420.30, 41,130.45 and 7,702.20

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Solution

The fourth proportional to 27,420.30, 41,130.45 and 7,702.20 is: 11,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.30 : 41,130.45 = 7,702.20 : x
  2. Step 2: Convert to fraction form
    27,420.30/41,130.45 = 7,702.20/x
  3. Step 3: Cross multiply
    27,420.30x = 41,130.45 × 7,702.20
  4. Step 4: Simplify right side
    27,420.30x = 316,794,951.99
  5. Step 5: Solve for x
    x = 316,794,951.99/27,420.30
  6. Step 6: Final answer
    x = 11,553.30

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1.5x scale

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.