Home / 29,109.12-40,171.20-16,362.56

Finding the Fourth Proportional to 29,109.12, 40,171.20 and 16,362.56

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Solution

The fourth proportional to 29,109.12, 40,171.20 and 16,362.56 is: 22,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109.12 : 40,171.20 = 16,362.56 : x
  2. Step 2: Convert to fraction form
    29,109.12/40,171.20 = 16,362.56/x
  3. Step 3: Cross multiply
    29,109.12x = 40,171.20 × 16,362.56
  4. Step 4: Simplify right side
    29,109.12x = 657,303,670.27
  5. Step 5: Solve for x
    x = 657,303,670.27/29,109.12
  6. Step 6: Final answer
    x = 22,580.68

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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.