Home / 39,653.13-54,722.85-21,748.89

Finding the Fourth Proportional to 39,653.13, 54,722.85 and 21,748.89

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Solution

The fourth proportional to 39,653.13, 54,722.85 and 21,748.89 is: 30,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,653.13 : 54,722.85 = 21,748.89 : x
  2. Step 2: Convert to fraction form
    39,653.13/54,722.85 = 21,748.89/x
  3. Step 3: Cross multiply
    39,653.13x = 54,722.85 × 21,748.89
  4. Step 4: Simplify right side
    39,653.13x = 1,190,161,245.14
  5. Step 5: Solve for x
    x = 1,190,161,245.14/39,653.13
  6. Step 6: Final answer
    x = 30,014.31

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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.