Home / 43,438.50-65,158.47-17,143.02

Finding the Fourth Proportional to 43,438.50, 65,158.47 and 17,143.02

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Solution

The fourth proportional to 43,438.50, 65,158.47 and 17,143.02 is: 25,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,438.50 : 65,158.47 = 17,143.02 : x
  2. Step 2: Convert to fraction form
    43,438.50/65,158.47 = 17,143.02/x
  3. Step 3: Cross multiply
    43,438.50x = 65,158.47 × 17,143.02
  4. Step 4: Simplify right side
    43,438.50x = 1,117,012,954.38
  5. Step 5: Solve for x
    x = 1,117,012,954.38/43,438.50
  6. Step 6: Final answer
    x = 25,714.81

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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.