Home / 39,328.72-54,278.40-22,338.28

Finding the Fourth Proportional to 39,328.72, 54,278.40 and 22,338.28

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Solution

The fourth proportional to 39,328.72, 54,278.40 and 22,338.28 is: 30,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,328.72 : 54,278.40 = 22,338.28 : x
  2. Step 2: Convert to fraction form
    39,328.72/54,278.40 = 22,338.28/x
  3. Step 3: Cross multiply
    39,328.72x = 54,278.40 × 22,338.28
  4. Step 4: Simplify right side
    39,328.72x = 1,212,486,097.15
  5. Step 5: Solve for x
    x = 1,212,486,097.15/39,328.72
  6. Step 6: Final answer
    x = 30,829.53

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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.