Home / 18,748.43-25,856.06-15,556.65

Finding the Fourth Proportional to 18,748.43, 25,856.06 and 15,556.65

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Solution

The fourth proportional to 18,748.43, 25,856.06 and 15,556.65 is: 21,454.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.43 : 25,856.06 = 15,556.65 : x
  2. Step 2: Convert to fraction form
    18,748.43/25,856.06 = 15,556.65/x
  3. Step 3: Cross multiply
    18,748.43x = 25,856.06 × 15,556.65
  4. Step 4: Simplify right side
    18,748.43x = 402,233,675.80
  5. Step 5: Solve for x
    x = 402,233,675.80/18,748.43
  6. Step 6: Final answer
    x = 21,454.26

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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.