Home / 19,702.31-27,189.13-10,749.75

Finding the Fourth Proportional to 19,702.31, 27,189.13 and 10,749.75

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Solution

The fourth proportional to 19,702.31, 27,189.13 and 10,749.75 is: 14,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.31 : 27,189.13 = 10,749.75 : x
  2. Step 2: Convert to fraction form
    19,702.31/27,189.13 = 10,749.75/x
  3. Step 3: Cross multiply
    19,702.31x = 27,189.13 × 10,749.75
  4. Step 4: Simplify right side
    19,702.31x = 292,276,350.22
  5. Step 5: Solve for x
    x = 292,276,350.22/19,702.31
  6. Step 6: Final answer
    x = 14,834.62

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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.