Home / 20,250.14-30,364.80-9,150.81

Finding the Fourth Proportional to 20,250.14, 30,364.80 and 9,150.81

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Solution

The fourth proportional to 20,250.14, 30,364.80 and 9,150.81 is: 13,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.14 : 30,364.80 = 9,150.81 : x
  2. Step 2: Convert to fraction form
    20,250.14/30,364.80 = 9,150.81/x
  3. Step 3: Cross multiply
    20,250.14x = 30,364.80 × 9,150.81
  4. Step 4: Simplify right side
    20,250.14x = 277,862,515.49
  5. Step 5: Solve for x
    x = 277,862,515.49/20,250.14
  6. Step 6: Final answer
    x = 13,721.51

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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.