Home / 39,463.25-54,458.60-21,557.79

Finding the Fourth Proportional to 39,463.25, 54,458.60 and 21,557.79

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Solution

The fourth proportional to 39,463.25, 54,458.60 and 21,557.79 is: 29,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,463.25 : 54,458.60 = 21,557.79 : x
  2. Step 2: Convert to fraction form
    39,463.25/54,458.60 = 21,557.79/x
  3. Step 3: Cross multiply
    39,463.25x = 54,458.60 × 21,557.79
  4. Step 4: Simplify right side
    39,463.25x = 1,174,006,954.71
  5. Step 5: Solve for x
    x = 1,174,006,954.71/39,463.25
  6. Step 6: Final answer
    x = 29,749.38

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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.