Home / 43,911.72-65,867.63-20,554.56

Finding the Fourth Proportional to 43,911.72, 65,867.63 and 20,554.56

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Solution

The fourth proportional to 43,911.72, 65,867.63 and 20,554.56 is: 30,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.72 : 65,867.63 = 20,554.56 : x
  2. Step 2: Convert to fraction form
    43,911.72/65,867.63 = 20,554.56/x
  3. Step 3: Cross multiply
    43,911.72x = 65,867.63 × 20,554.56
  4. Step 4: Simplify right side
    43,911.72x = 1,353,880,050.12
  5. Step 5: Solve for x
    x = 1,353,880,050.12/43,911.72
  6. Step 6: Final answer
    x = 30,831.86

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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.