Home / 19,428.50-29,147.87-6,949.76

Finding the Fourth Proportional to 19,428.50, 29,147.87 and 6,949.76

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Solution

The fourth proportional to 19,428.50, 29,147.87 and 6,949.76 is: 10,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.50 : 29,147.87 = 6,949.76 : x
  2. Step 2: Convert to fraction form
    19,428.50/29,147.87 = 6,949.76/x
  3. Step 3: Cross multiply
    19,428.50x = 29,147.87 × 6,949.76
  4. Step 4: Simplify right side
    19,428.50x = 202,570,701.01
  5. Step 5: Solve for x
    x = 202,570,701.01/19,428.50
  6. Step 6: Final answer
    x = 10,426.47

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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.