Home / 28,103.58-38,785.95-17,347.86

Finding the Fourth Proportional to 28,103.58, 38,785.95 and 17,347.86

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Solution

The fourth proportional to 28,103.58, 38,785.95 and 17,347.86 is: 23,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.58 : 38,785.95 = 17,347.86 : x
  2. Step 2: Convert to fraction form
    28,103.58/38,785.95 = 17,347.86/x
  3. Step 3: Cross multiply
    28,103.58x = 38,785.95 × 17,347.86
  4. Step 4: Simplify right side
    28,103.58x = 672,853,230.57
  5. Step 5: Solve for x
    x = 672,853,230.57/28,103.58
  6. Step 6: Final answer
    x = 23,941.90

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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.