Home / 30,451.90-42,024.56-17,023.72

Finding the Fourth Proportional to 30,451.90, 42,024.56 and 17,023.72

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Solution

The fourth proportional to 30,451.90, 42,024.56 and 17,023.72 is: 23,493.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.90 : 42,024.56 = 17,023.72 : x
  2. Step 2: Convert to fraction form
    30,451.90/42,024.56 = 17,023.72/x
  3. Step 3: Cross multiply
    30,451.90x = 42,024.56 × 17,023.72
  4. Step 4: Simplify right side
    30,451.90x = 715,414,231.18
  5. Step 5: Solve for x
    x = 715,414,231.18/30,451.90
  6. Step 6: Final answer
    x = 23,493.25

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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.