Home / 43,765.12-65,549.76-20,356.48

Finding the Fourth Proportional to 43,765.12, 65,549.76 and 20,356.48

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Solution

The fourth proportional to 43,765.12, 65,549.76 and 20,356.48 is: 30,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,765.12 : 65,549.76 = 20,356.48 : x
  2. Step 2: Convert to fraction form
    43,765.12/65,549.76 = 20,356.48/x
  3. Step 3: Cross multiply
    43,765.12x = 65,549.76 × 20,356.48
  4. Step 4: Simplify right side
    43,765.12x = 1,334,362,378.44
  5. Step 5: Solve for x
    x = 1,334,362,378.44/43,765.12
  6. Step 6: Final answer
    x = 30,489.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.