Home / 39,420.42-54,389.79-22,424.82

Finding the Fourth Proportional to 39,420.42, 54,389.79 and 22,424.82

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Solution

The fourth proportional to 39,420.42, 54,389.79 and 22,424.82 is: 30,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.42 : 54,389.79 = 22,424.82 : x
  2. Step 2: Convert to fraction form
    39,420.42/54,389.79 = 22,424.82/x
  3. Step 3: Cross multiply
    39,420.42x = 54,389.79 × 22,424.82
  4. Step 4: Simplify right side
    39,420.42x = 1,219,681,250.59
  5. Step 5: Solve for x
    x = 1,219,681,250.59/39,420.42
  6. Step 6: Final answer
    x = 30,940.34

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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.