Home / 39,574.18-54,609.96-21,669.40

Finding the Fourth Proportional to 39,574.18, 54,609.96 and 21,669.40

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Solution

The fourth proportional to 39,574.18, 54,609.96 and 21,669.40 is: 29,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,574.18 : 54,609.96 = 21,669.40 : x
  2. Step 2: Convert to fraction form
    39,574.18/54,609.96 = 21,669.40/x
  3. Step 3: Cross multiply
    39,574.18x = 54,609.96 × 21,669.40
  4. Step 4: Simplify right side
    39,574.18x = 1,183,365,067.22
  5. Step 5: Solve for x
    x = 1,183,365,067.22/39,574.18
  6. Step 6: Final answer
    x = 29,902.45

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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.