Home / 39,121.28-53,982.18-22,127.84

Finding the Fourth Proportional to 39,121.28, 53,982.18 and 22,127.84

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Solution

The fourth proportional to 39,121.28, 53,982.18 and 22,127.84 is: 30,533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,121.28 : 53,982.18 = 22,127.84 : x
  2. Step 2: Convert to fraction form
    39,121.28/53,982.18 = 22,127.84/x
  3. Step 3: Cross multiply
    39,121.28x = 53,982.18 × 22,127.84
  4. Step 4: Simplify right side
    39,121.28x = 1,194,509,041.89
  5. Step 5: Solve for x
    x = 1,194,509,041.89/39,121.28
  6. Step 6: Final answer
    x = 30,533.49

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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.