Home / 39,378.14-54,343.20-22,383.10

Finding the Fourth Proportional to 39,378.14, 54,343.20 and 22,383.10

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Solution

The fourth proportional to 39,378.14, 54,343.20 and 22,383.10 is: 30,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.14 : 54,343.20 = 22,383.10 : x
  2. Step 2: Convert to fraction form
    39,378.14/54,343.20 = 22,383.10/x
  3. Step 3: Cross multiply
    39,378.14x = 54,343.20 × 22,383.10
  4. Step 4: Simplify right side
    39,378.14x = 1,216,369,144.06
  5. Step 5: Solve for x
    x = 1,216,369,144.06/39,378.14
  6. Step 6: Final answer
    x = 30,889.45

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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.