Home / 25,921.36-38,888.83-8,151.30

Finding the Fourth Proportional to 25,921.36, 38,888.83 and 8,151.30

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Solution

The fourth proportional to 25,921.36, 38,888.83 and 8,151.30 is: 12,229.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,921.36 : 38,888.83 = 8,151.30 : x
  2. Step 2: Convert to fraction form
    25,921.36/38,888.83 = 8,151.30/x
  3. Step 3: Cross multiply
    25,921.36x = 38,888.83 × 8,151.30
  4. Step 4: Simplify right side
    25,921.36x = 316,994,479.22
  5. Step 5: Solve for x
    x = 316,994,479.22/25,921.36
  6. Step 6: Final answer
    x = 12,229.09

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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.