Home / 30,451.47-42,023.19-17,023.29

Finding the Fourth Proportional to 30,451.47, 42,023.19 and 17,023.29

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Solution

The fourth proportional to 30,451.47, 42,023.19 and 17,023.29 is: 23,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.47 : 42,023.19 = 17,023.29 : x
  2. Step 2: Convert to fraction form
    30,451.47/42,023.19 = 17,023.29/x
  3. Step 3: Cross multiply
    30,451.47x = 42,023.19 × 17,023.29
  4. Step 4: Simplify right side
    30,451.47x = 715,372,950.10
  5. Step 5: Solve for x
    x = 715,372,950.10/30,451.47
  6. Step 6: Final answer
    x = 23,492.23

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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.