Home / 27,959.42-38,577.67-20,409.86

Finding the Fourth Proportional to 27,959.42, 38,577.67 and 20,409.86

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Solution

The fourth proportional to 27,959.42, 38,577.67 and 20,409.86 is: 28,160.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,959.42 : 38,577.67 = 20,409.86 : x
  2. Step 2: Convert to fraction form
    27,959.42/38,577.67 = 20,409.86/x
  3. Step 3: Cross multiply
    27,959.42x = 38,577.67 × 20,409.86
  4. Step 4: Simplify right side
    27,959.42x = 787,364,889.25
  5. Step 5: Solve for x
    x = 787,364,889.25/27,959.42
  6. Step 6: Final answer
    x = 28,160.99

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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.