Home / 30,451.60-42,022.42-17,023.02

Finding the Fourth Proportional to 30,451.60, 42,022.42 and 17,023.02

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Solution

The fourth proportional to 30,451.60, 42,022.42 and 17,023.02 is: 23,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.60 : 42,022.42 = 17,023.02 : x
  2. Step 2: Convert to fraction form
    30,451.60/42,022.42 = 17,023.02/x
  3. Step 3: Cross multiply
    30,451.60x = 42,022.42 × 17,023.02
  4. Step 4: Simplify right side
    30,451.60x = 715,348,496.11
  5. Step 5: Solve for x
    x = 715,348,496.11/30,451.60
  6. Step 6: Final answer
    x = 23,491.33

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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.