Home / 30,690.11-42,168.81-24,391.55

Finding the Fourth Proportional to 30,690.11, 42,168.81 and 24,391.55

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Solution

The fourth proportional to 30,690.11, 42,168.81 and 24,391.55 is: 33,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690.11 : 42,168.81 = 24,391.55 : x
  2. Step 2: Convert to fraction form
    30,690.11/42,168.81 = 24,391.55/x
  3. Step 3: Cross multiply
    30,690.11x = 42,168.81 × 24,391.55
  4. Step 4: Simplify right side
    30,690.11x = 1,028,562,637.56
  5. Step 5: Solve for x
    x = 1,028,562,637.56/30,690.11
  6. Step 6: Final answer
    x = 33,514.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.