Home / 31,420.20-43,340.58-22,452.21

Finding the Fourth Proportional to 31,420.20, 43,340.58 and 22,452.21

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Solution

The fourth proportional to 31,420.20, 43,340.58 and 22,452.21 is: 30,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.20 : 43,340.58 = 22,452.21 : x
  2. Step 2: Convert to fraction form
    31,420.20/43,340.58 = 22,452.21/x
  3. Step 3: Cross multiply
    31,420.20x = 43,340.58 × 22,452.21
  4. Step 4: Simplify right side
    31,420.20x = 973,091,803.68
  5. Step 5: Solve for x
    x = 973,091,803.68/31,420.20
  6. Step 6: Final answer
    x = 30,970.26

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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.