Home / 39,905.04-55,069.31-22,000.68

Finding the Fourth Proportional to 39,905.04, 55,069.31 and 22,000.68

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Solution

The fourth proportional to 39,905.04, 55,069.31 and 22,000.68 is: 30,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.04 : 55,069.31 = 22,000.68 : x
  2. Step 2: Convert to fraction form
    39,905.04/55,069.31 = 22,000.68/x
  3. Step 3: Cross multiply
    39,905.04x = 55,069.31 × 22,000.68
  4. Step 4: Simplify right side
    39,905.04x = 1,211,561,881.78
  5. Step 5: Solve for x
    x = 1,211,561,881.78/39,905.04
  6. Step 6: Final answer
    x = 30,361.13

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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.