Home / 29,420.80-40,585.46-18,223.36

Finding the Fourth Proportional to 29,420.80, 40,585.46 and 18,223.36

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Solution

The fourth proportional to 29,420.80, 40,585.46 and 18,223.36 is: 25,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.80 : 40,585.46 = 18,223.36 : x
  2. Step 2: Convert to fraction form
    29,420.80/40,585.46 = 18,223.36/x
  3. Step 3: Cross multiply
    29,420.80x = 40,585.46 × 18,223.36
  4. Step 4: Simplify right side
    29,420.80x = 739,603,448.35
  5. Step 5: Solve for x
    x = 739,603,448.35/29,420.80
  6. Step 6: Final answer
    x = 25,138.79

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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.