Home / 30,605.13-42,233.81-17,177.49

Finding the Fourth Proportional to 30,605.13, 42,233.81 and 17,177.49

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Solution

The fourth proportional to 30,605.13, 42,233.81 and 17,177.49 is: 23,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.13 : 42,233.81 = 17,177.49 : x
  2. Step 2: Convert to fraction form
    30,605.13/42,233.81 = 17,177.49/x
  3. Step 3: Cross multiply
    30,605.13x = 42,233.81 × 17,177.49
  4. Step 4: Simplify right side
    30,605.13x = 725,470,763.05
  5. Step 5: Solve for x
    x = 725,470,763.05/30,605.13
  6. Step 6: Final answer
    x = 23,704.22

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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.