Home / 19,928.10-29,878.17-8,828.76

Finding the Fourth Proportional to 19,928.10, 29,878.17 and 8,828.76

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Solution

The fourth proportional to 19,928.10, 29,878.17 and 8,828.76 is: 13,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.10 : 29,878.17 = 8,828.76 : x
  2. Step 2: Convert to fraction form
    19,928.10/29,878.17 = 8,828.76/x
  3. Step 3: Cross multiply
    19,928.10x = 29,878.17 × 8,828.76
  4. Step 4: Simplify right side
    19,928.10x = 263,787,192.17
  5. Step 5: Solve for x
    x = 263,787,192.17/19,928.10
  6. Step 6: Final answer
    x = 13,236.95

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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.