Home / 39,488.40-54,493.18-21,583.54

Finding the Fourth Proportional to 39,488.40, 54,493.18 and 21,583.54

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Solution

The fourth proportional to 39,488.40, 54,493.18 and 21,583.54 is: 29,784.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,488.40 : 54,493.18 = 21,583.54 : x
  2. Step 2: Convert to fraction form
    39,488.40/54,493.18 = 21,583.54/x
  3. Step 3: Cross multiply
    39,488.40x = 54,493.18 × 21,583.54
  4. Step 4: Simplify right side
    39,488.40x = 1,176,155,730.26
  5. Step 5: Solve for x
    x = 1,176,155,730.26/39,488.40
  6. Step 6: Final answer
    x = 29,784.84

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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.