Home / 30,451.95-42,023.57-17,023.21

Finding the Fourth Proportional to 30,451.95, 42,023.57 and 17,023.21

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Solution

The fourth proportional to 30,451.95, 42,023.57 and 17,023.21 is: 23,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.95 : 42,023.57 = 17,023.21 : x
  2. Step 2: Convert to fraction form
    30,451.95/42,023.57 = 17,023.21/x
  3. Step 3: Cross multiply
    30,451.95x = 42,023.57 × 17,023.21
  4. Step 4: Simplify right side
    30,451.95x = 715,375,866.88
  5. Step 5: Solve for x
    x = 715,375,866.88/30,451.95
  6. Step 6: Final answer
    x = 23,491.96

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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.