Home / 30,781.27-42,477.99-16,634.08

Finding the Fourth Proportional to 30,781.27, 42,477.99 and 16,634.08

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Solution

The fourth proportional to 30,781.27, 42,477.99 and 16,634.08 is: 22,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,781.27 : 42,477.99 = 16,634.08 : x
  2. Step 2: Convert to fraction form
    30,781.27/42,477.99 = 16,634.08/x
  3. Step 3: Cross multiply
    30,781.27x = 42,477.99 × 16,634.08
  4. Step 4: Simplify right side
    30,781.27x = 706,582,283.90
  5. Step 5: Solve for x
    x = 706,582,283.90/30,781.27
  6. Step 6: Final answer
    x = 22,954.94

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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.