Home / 43,686.24-65,501.52-20,319.84

Finding the Fourth Proportional to 43,686.24, 65,501.52 and 20,319.84

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Solution

The fourth proportional to 43,686.24, 65,501.52 and 20,319.84 is: 30,466.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,686.24 : 65,501.52 = 20,319.84 : x
  2. Step 2: Convert to fraction form
    43,686.24/65,501.52 = 20,319.84/x
  3. Step 3: Cross multiply
    43,686.24x = 65,501.52 × 20,319.84
  4. Step 4: Simplify right side
    43,686.24x = 1,330,980,406.16
  5. Step 5: Solve for x
    x = 1,330,980,406.16/43,686.24
  6. Step 6: Final answer
    x = 30,466.81

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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.