Home / 39,055.84-53,896.97-21,150.79

Finding the Fourth Proportional to 39,055.84, 53,896.97 and 21,150.79

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Solution

The fourth proportional to 39,055.84, 53,896.97 and 21,150.79 is: 29,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.84 : 53,896.97 = 21,150.79 : x
  2. Step 2: Convert to fraction form
    39,055.84/53,896.97 = 21,150.79/x
  3. Step 3: Cross multiply
    39,055.84x = 53,896.97 × 21,150.79
  4. Step 4: Simplify right side
    39,055.84x = 1,139,963,494.11
  5. Step 5: Solve for x
    x = 1,139,963,494.11/39,055.84
  6. Step 6: Final answer
    x = 29,188.04

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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.