Home / 19,426.88-29,143.20-7,112

Finding the Fourth Proportional to 19,426.88, 29,143.20 and 7,112

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Solution

The fourth proportional to 19,426.88, 29,143.20 and 7,112 is: 10,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.88 : 29,143.20 = 7,112 : x
  2. Step 2: Convert to fraction form
    19,426.88/29,143.20 = 7,112/x
  3. Step 3: Cross multiply
    19,426.88x = 29,143.20 × 7,112
  4. Step 4: Simplify right side
    19,426.88x = 207,266,438.40
  5. Step 5: Solve for x
    x = 207,266,438.40/19,426.88
  6. Step 6: Final answer
    x = 10,669.05

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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.