Home / 19,426.28-29,135.09-7,580.37

Finding the Fourth Proportional to 19,426.28, 29,135.09 and 7,580.37

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Solution

The fourth proportional to 19,426.28, 29,135.09 and 7,580.37 is: 11,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.28 : 29,135.09 = 7,580.37 : x
  2. Step 2: Convert to fraction form
    19,426.28/29,135.09 = 7,580.37/x
  3. Step 3: Cross multiply
    19,426.28x = 29,135.09 × 7,580.37
  4. Step 4: Simplify right side
    19,426.28x = 220,854,724.28
  5. Step 5: Solve for x
    x = 220,854,724.28/19,426.28
  6. Step 6: Final answer
    x = 11,368.87

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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.