Home / 30,618.27-42,249.95-17,191.00

Finding the Fourth Proportional to 30,618.27, 42,249.95 and 17,191.00

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Solution

The fourth proportional to 30,618.27, 42,249.95 and 17,191.00 is: 23,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.27 : 42,249.95 = 17,191.00 : x
  2. Step 2: Convert to fraction form
    30,618.27/42,249.95 = 17,191.00/x
  3. Step 3: Cross multiply
    30,618.27x = 42,249.95 × 17,191.00
  4. Step 4: Simplify right side
    30,618.27x = 726,318,698.87
  5. Step 5: Solve for x
    x = 726,318,698.87/30,618.27
  6. Step 6: Final answer
    x = 23,721.74

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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.