Home / 19,531.28-29,298.64-5,491.43

Finding the Fourth Proportional to 19,531.28, 29,298.64 and 5,491.43

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Solution

The fourth proportional to 19,531.28, 29,298.64 and 5,491.43 is: 8,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.28 : 29,298.64 = 5,491.43 : x
  2. Step 2: Convert to fraction form
    19,531.28/29,298.64 = 5,491.43/x
  3. Step 3: Cross multiply
    19,531.28x = 29,298.64 × 5,491.43
  4. Step 4: Simplify right side
    19,531.28x = 160,891,333.94
  5. Step 5: Solve for x
    x = 160,891,333.94/19,531.28
  6. Step 6: Final answer
    x = 8,237.63

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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.