Home / 43,323.28-64,991.11-13,340.05

Finding the Fourth Proportional to 43,323.28, 64,991.11 and 13,340.05

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Solution

The fourth proportional to 43,323.28, 64,991.11 and 13,340.05 is: 20,011.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,323.28 : 64,991.11 = 13,340.05 : x
  2. Step 2: Convert to fraction form
    43,323.28/64,991.11 = 13,340.05/x
  3. Step 3: Cross multiply
    43,323.28x = 64,991.11 × 13,340.05
  4. Step 4: Simplify right side
    43,323.28x = 866,984,656.96
  5. Step 5: Solve for x
    x = 866,984,656.96/43,323.28
  6. Step 6: Final answer
    x = 20,011.98

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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.