Home / 39,420.55-54,398.01-22,422.34

Finding the Fourth Proportional to 39,420.55, 54,398.01 and 22,422.34

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Solution

The fourth proportional to 39,420.55, 54,398.01 and 22,422.34 is: 30,941.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.55 : 54,398.01 = 22,422.34 : x
  2. Step 2: Convert to fraction form
    39,420.55/54,398.01 = 22,422.34/x
  3. Step 3: Cross multiply
    39,420.55x = 54,398.01 × 22,422.34
  4. Step 4: Simplify right side
    39,420.55x = 1,219,730,675.54
  5. Step 5: Solve for x
    x = 1,219,730,675.54/39,420.55
  6. Step 6: Final answer
    x = 30,941.49

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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.