Home / 43,271.68-64,919.02-13,690.04

Finding the Fourth Proportional to 43,271.68, 64,919.02 and 13,690.04

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Solution

The fourth proportional to 43,271.68, 64,919.02 and 13,690.04 is: 20,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,271.68 : 64,919.02 = 13,690.04 : x
  2. Step 2: Convert to fraction form
    43,271.68/64,919.02 = 13,690.04/x
  3. Step 3: Cross multiply
    43,271.68x = 64,919.02 × 13,690.04
  4. Step 4: Simplify right side
    43,271.68x = 888,743,980.56
  5. Step 5: Solve for x
    x = 888,743,980.56/43,271.68
  6. Step 6: Final answer
    x = 20,538.70

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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.