Home / 39,669.60-54,744.76-21,763.50

Finding the Fourth Proportional to 39,669.60, 54,744.76 and 21,763.50

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Solution

The fourth proportional to 39,669.60, 54,744.76 and 21,763.50 is: 30,034.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669.60 : 54,744.76 = 21,763.50 : x
  2. Step 2: Convert to fraction form
    39,669.60/54,744.76 = 21,763.50/x
  3. Step 3: Cross multiply
    39,669.60x = 54,744.76 × 21,763.50
  4. Step 4: Simplify right side
    39,669.60x = 1,191,437,584.26
  5. Step 5: Solve for x
    x = 1,191,437,584.26/39,669.60
  6. Step 6: Final answer
    x = 30,034.02

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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.