Home / 38,079.81-52,548.41-21,082.86

Finding the Fourth Proportional to 38,079.81, 52,548.41 and 21,082.86

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Solution

The fourth proportional to 38,079.81, 52,548.41 and 21,082.86 is: 29,093.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079.81 : 52,548.41 = 21,082.86 : x
  2. Step 2: Convert to fraction form
    38,079.81/52,548.41 = 21,082.86/x
  3. Step 3: Cross multiply
    38,079.81x = 52,548.41 × 21,082.86
  4. Step 4: Simplify right side
    38,079.81x = 1,107,870,823.96
  5. Step 5: Solve for x
    x = 1,107,870,823.96/38,079.81
  6. Step 6: Final answer
    x = 29,093.39

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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.