Home / 30,661.18-42,313.60-17,232.18

Finding the Fourth Proportional to 30,661.18, 42,313.60 and 17,232.18

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Solution

The fourth proportional to 30,661.18, 42,313.60 and 17,232.18 is: 23,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,661.18 : 42,313.60 = 17,232.18 : x
  2. Step 2: Convert to fraction form
    30,661.18/42,313.60 = 17,232.18/x
  3. Step 3: Cross multiply
    30,661.18x = 42,313.60 × 17,232.18
  4. Step 4: Simplify right side
    30,661.18x = 729,155,571.65
  5. Step 5: Solve for x
    x = 729,155,571.65/30,661.18
  6. Step 6: Final answer
    x = 23,781.07

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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.