Home / 39,794.76-54,913.98-21,890.52

Finding the Fourth Proportional to 39,794.76, 54,913.98 and 21,890.52

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Solution

The fourth proportional to 39,794.76, 54,913.98 and 21,890.52 is: 30,207.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.76 : 54,913.98 = 21,890.52 : x
  2. Step 2: Convert to fraction form
    39,794.76/54,913.98 = 21,890.52/x
  3. Step 3: Cross multiply
    39,794.76x = 54,913.98 × 21,890.52
  4. Step 4: Simplify right side
    39,794.76x = 1,202,095,577.47
  5. Step 5: Solve for x
    x = 1,202,095,577.47/39,794.76
  6. Step 6: Final answer
    x = 30,207.38

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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.