Home / 25,405.79-35,061.29-15,334.09

Finding the Fourth Proportional to 25,405.79, 35,061.29 and 15,334.09

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Solution

The fourth proportional to 25,405.79, 35,061.29 and 15,334.09 is: 21,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.79 : 35,061.29 = 15,334.09 : x
  2. Step 2: Convert to fraction form
    25,405.79/35,061.29 = 15,334.09/x
  3. Step 3: Cross multiply
    25,405.79x = 35,061.29 × 15,334.09
  4. Step 4: Simplify right side
    25,405.79x = 537,632,869.56
  5. Step 5: Solve for x
    x = 537,632,869.56/25,405.79
  6. Step 6: Final answer
    x = 21,161.83

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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.