Home / 39,653.13-54,721.59-21,748.26

Finding the Fourth Proportional to 39,653.13, 54,721.59 and 21,748.26

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Solution

The fourth proportional to 39,653.13, 54,721.59 and 21,748.26 is: 30,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,653.13 : 54,721.59 = 21,748.26 : x
  2. Step 2: Convert to fraction form
    39,653.13/54,721.59 = 21,748.26/x
  3. Step 3: Cross multiply
    39,653.13x = 54,721.59 × 21,748.26
  4. Step 4: Simplify right side
    39,653.13x = 1,190,099,285.38
  5. Step 5: Solve for x
    x = 1,190,099,285.38/39,653.13
  6. Step 6: Final answer
    x = 30,012.75

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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.