Home / 39,912.81-55,080.05-22,008.45

Finding the Fourth Proportional to 39,912.81, 55,080.05 and 22,008.45

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Solution

The fourth proportional to 39,912.81, 55,080.05 and 22,008.45 is: 30,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.81 : 55,080.05 = 22,008.45 : x
  2. Step 2: Convert to fraction form
    39,912.81/55,080.05 = 22,008.45/x
  3. Step 3: Cross multiply
    39,912.81x = 55,080.05 × 22,008.45
  4. Step 4: Simplify right side
    39,912.81x = 1,212,226,526.42
  5. Step 5: Solve for x
    x = 1,212,226,526.42/39,912.81
  6. Step 6: Final answer
    x = 30,371.87

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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.