Home / 39,557.04-54,588.68-21,651.89

Finding the Fourth Proportional to 39,557.04, 54,588.68 and 21,651.89

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Solution

The fourth proportional to 39,557.04, 54,588.68 and 21,651.89 is: 29,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.04 : 54,588.68 = 21,651.89 : x
  2. Step 2: Convert to fraction form
    39,557.04/54,588.68 = 21,651.89/x
  3. Step 3: Cross multiply
    39,557.04x = 54,588.68 × 21,651.89
  4. Step 4: Simplify right side
    39,557.04x = 1,181,947,713.40
  5. Step 5: Solve for x
    x = 1,181,947,713.40/39,557.04
  6. Step 6: Final answer
    x = 29,879.58

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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.