Home / 30,155.78-41,618.53-16,727.90

Finding the Fourth Proportional to 30,155.78, 41,618.53 and 16,727.90

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Solution

The fourth proportional to 30,155.78, 41,618.53 and 16,727.90 is: 23,086.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.78 : 41,618.53 = 16,727.90 : x
  2. Step 2: Convert to fraction form
    30,155.78/41,618.53 = 16,727.90/x
  3. Step 3: Cross multiply
    30,155.78x = 41,618.53 × 16,727.90
  4. Step 4: Simplify right side
    30,155.78x = 696,190,607.99
  5. Step 5: Solve for x
    x = 696,190,607.99/30,155.78
  6. Step 6: Final answer
    x = 23,086.47

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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.