Home / 21,904.14-32,856.18-8,759.58

Finding the Fourth Proportional to 21,904.14, 32,856.18 and 8,759.58

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Solution

The fourth proportional to 21,904.14, 32,856.18 and 8,759.58 is: 13,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.14 : 32,856.18 = 8,759.58 : x
  2. Step 2: Convert to fraction form
    21,904.14/32,856.18 = 8,759.58/x
  3. Step 3: Cross multiply
    21,904.14x = 32,856.18 × 8,759.58
  4. Step 4: Simplify right side
    21,904.14x = 287,806,337.20
  5. Step 5: Solve for x
    x = 287,806,337.20/21,904.14
  6. Step 6: Final answer
    x = 13,139.36

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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.