Home / 39,653.36-54,721.67-21,748.71

Finding the Fourth Proportional to 39,653.36, 54,721.67 and 21,748.71

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Solution

The fourth proportional to 39,653.36, 54,721.67 and 21,748.71 is: 30,013.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,653.36 : 54,721.67 = 21,748.71 : x
  2. Step 2: Convert to fraction form
    39,653.36/54,721.67 = 21,748.71/x
  3. Step 3: Cross multiply
    39,653.36x = 54,721.67 × 21,748.71
  4. Step 4: Simplify right side
    39,653.36x = 1,190,125,622.80
  5. Step 5: Solve for x
    x = 1,190,125,622.80/39,653.36
  6. Step 6: Final answer
    x = 30,013.24

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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.