Home / 39,646.01-54,712.25-21,739.95

Finding the Fourth Proportional to 39,646.01, 54,712.25 and 21,739.95

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Solution

The fourth proportional to 39,646.01, 54,712.25 and 21,739.95 is: 30,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,646.01 : 54,712.25 = 21,739.95 : x
  2. Step 2: Convert to fraction form
    39,646.01/54,712.25 = 21,739.95/x
  3. Step 3: Cross multiply
    39,646.01x = 54,712.25 × 21,739.95
  4. Step 4: Simplify right side
    39,646.01x = 1,189,441,470.69
  5. Step 5: Solve for x
    x = 1,189,441,470.69/39,646.01
  6. Step 6: Final answer
    x = 30,001.55

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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.