Home / 32,420.12-44,776.65-21,791.30

Finding the Fourth Proportional to 32,420.12, 44,776.65 and 21,791.30

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Solution

The fourth proportional to 32,420.12, 44,776.65 and 21,791.30 is: 30,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,420.12 : 44,776.65 = 21,791.30 : x
  2. Step 2: Convert to fraction form
    32,420.12/44,776.65 = 21,791.30/x
  3. Step 3: Cross multiply
    32,420.12x = 44,776.65 × 21,791.30
  4. Step 4: Simplify right side
    32,420.12x = 975,741,270.98
  5. Step 5: Solve for x
    x = 975,741,270.98/32,420.12
  6. Step 6: Final answer
    x = 30,096.79

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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.