Home / 28,272.43-42,344.05-13,491.73

Finding the Fourth Proportional to 28,272.43, 42,344.05 and 13,491.73

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Solution

The fourth proportional to 28,272.43, 42,344.05 and 13,491.73 is: 20,206.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.43 : 42,344.05 = 13,491.73 : x
  2. Step 2: Convert to fraction form
    28,272.43/42,344.05 = 13,491.73/x
  3. Step 3: Cross multiply
    28,272.43x = 42,344.05 × 13,491.73
  4. Step 4: Simplify right side
    28,272.43x = 571,294,277.99
  5. Step 5: Solve for x
    x = 571,294,277.99/28,272.43
  6. Step 6: Final answer
    x = 20,206.77

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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.