Home / 30,180.05-45,274.84-9,117.48

Finding the Fourth Proportional to 30,180.05, 45,274.84 and 9,117.48

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Solution

The fourth proportional to 30,180.05, 45,274.84 and 9,117.48 is: 13,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.05 : 45,274.84 = 9,117.48 : x
  2. Step 2: Convert to fraction form
    30,180.05/45,274.84 = 9,117.48/x
  3. Step 3: Cross multiply
    30,180.05x = 45,274.84 × 9,117.48
  4. Step 4: Simplify right side
    30,180.05x = 412,792,448.20
  5. Step 5: Solve for x
    x = 412,792,448.20/30,180.05
  6. Step 6: Final answer
    x = 13,677.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.