Home / 21,876.77-32,815.16-6,294.40

Finding the Fourth Proportional to 21,876.77, 32,815.16 and 6,294.40

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Solution

The fourth proportional to 21,876.77, 32,815.16 and 6,294.40 is: 9,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,876.77 : 32,815.16 = 6,294.40 : x
  2. Step 2: Convert to fraction form
    21,876.77/32,815.16 = 6,294.40/x
  3. Step 3: Cross multiply
    21,876.77x = 32,815.16 × 6,294.40
  4. Step 4: Simplify right side
    21,876.77x = 206,551,653.20
  5. Step 5: Solve for x
    x = 206,551,653.20/21,876.77
  6. Step 6: Final answer
    x = 9,441.60

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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.