Home / 19,305.40-28,961.52-6,156.40

Finding the Fourth Proportional to 19,305.40, 28,961.52 and 6,156.40

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Solution

The fourth proportional to 19,305.40, 28,961.52 and 6,156.40 is: 9,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.40 : 28,961.52 = 6,156.40 : x
  2. Step 2: Convert to fraction form
    19,305.40/28,961.52 = 6,156.40/x
  3. Step 3: Cross multiply
    19,305.40x = 28,961.52 × 6,156.40
  4. Step 4: Simplify right side
    19,305.40x = 178,298,701.73
  5. Step 5: Solve for x
    x = 178,298,701.73/19,305.40
  6. Step 6: Final answer
    x = 9,235.69

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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.