Home / 25,921.55-38,876.67-10,121.51

Finding the Fourth Proportional to 25,921.55, 38,876.67 and 10,121.51

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Solution

The fourth proportional to 25,921.55, 38,876.67 and 10,121.51 is: 15,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,921.55 : 38,876.67 = 10,121.51 : x
  2. Step 2: Convert to fraction form
    25,921.55/38,876.67 = 10,121.51/x
  3. Step 3: Cross multiply
    25,921.55x = 38,876.67 × 10,121.51
  4. Step 4: Simplify right side
    25,921.55x = 393,490,409.79
  5. Step 5: Solve for x
    x = 393,490,409.79/25,921.55
  6. Step 6: Final answer
    x = 15,180.05

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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.