Home / 18,031.10-27,027.48-10,639.04

Finding the Fourth Proportional to 18,031.10, 27,027.48 and 10,639.04

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Solution

The fourth proportional to 18,031.10, 27,027.48 and 10,639.04 is: 15,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.10 : 27,027.48 = 10,639.04 : x
  2. Step 2: Convert to fraction form
    18,031.10/27,027.48 = 10,639.04/x
  3. Step 3: Cross multiply
    18,031.10x = 27,027.48 × 10,639.04
  4. Step 4: Simplify right side
    18,031.10x = 287,546,440.82
  5. Step 5: Solve for x
    x = 287,546,440.82/18,031.10
  6. Step 6: Final answer
    x = 15,947.25

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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.