Home / 39,905.07-55,071.47-22,000.04

Finding the Fourth Proportional to 39,905.07, 55,071.47 and 22,000.04

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Solution

The fourth proportional to 39,905.07, 55,071.47 and 22,000.04 is: 30,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.07 : 55,071.47 = 22,000.04 : x
  2. Step 2: Convert to fraction form
    39,905.07/55,071.47 = 22,000.04/x
  3. Step 3: Cross multiply
    39,905.07x = 55,071.47 × 22,000.04
  4. Step 4: Simplify right side
    39,905.07x = 1,211,574,542.86
  5. Step 5: Solve for x
    x = 1,211,574,542.86/39,905.07
  6. Step 6: Final answer
    x = 30,361.42

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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.