Home / 39,365.80-54,323.46-21,460.52

Finding the Fourth Proportional to 39,365.80, 54,323.46 and 21,460.52

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Solution

The fourth proportional to 39,365.80, 54,323.46 and 21,460.52 is: 29,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,365.80 : 54,323.46 = 21,460.52 : x
  2. Step 2: Convert to fraction form
    39,365.80/54,323.46 = 21,460.52/x
  3. Step 3: Cross multiply
    39,365.80x = 54,323.46 × 21,460.52
  4. Step 4: Simplify right side
    39,365.80x = 1,165,809,699.80
  5. Step 5: Solve for x
    x = 1,165,809,699.80/39,365.80
  6. Step 6: Final answer
    x = 29,614.78

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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.