Home / 28,281.76-39,022.64-17,103.52

Finding the Fourth Proportional to 28,281.76, 39,022.64 and 17,103.52

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Solution

The fourth proportional to 28,281.76, 39,022.64 and 17,103.52 is: 23,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.76 : 39,022.64 = 17,103.52 : x
  2. Step 2: Convert to fraction form
    28,281.76/39,022.64 = 17,103.52/x
  3. Step 3: Cross multiply
    28,281.76x = 39,022.64 × 17,103.52
  4. Step 4: Simplify right side
    28,281.76x = 667,424,503.69
  5. Step 5: Solve for x
    x = 667,424,503.69/28,281.76
  6. Step 6: Final answer
    x = 23,599.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.