Home / 25,953.83-35,774.22-20,278.68

Finding the Fourth Proportional to 25,953.83, 35,774.22 and 20,278.68

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Solution

The fourth proportional to 25,953.83, 35,774.22 and 20,278.68 is: 27,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,953.83 : 35,774.22 = 20,278.68 : x
  2. Step 2: Convert to fraction form
    25,953.83/35,774.22 = 20,278.68/x
  3. Step 3: Cross multiply
    25,953.83x = 35,774.22 × 20,278.68
  4. Step 4: Simplify right side
    25,953.83x = 725,453,959.63
  5. Step 5: Solve for x
    x = 725,453,959.63/25,953.83
  6. Step 6: Final answer
    x = 27,951.71

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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.