Home / 31,812.30-43,903.60-17,666.06

Finding the Fourth Proportional to 31,812.30, 43,903.60 and 17,666.06

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Solution

The fourth proportional to 31,812.30, 43,903.60 and 17,666.06 is: 24,380.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,812.30 : 43,903.60 = 17,666.06 : x
  2. Step 2: Convert to fraction form
    31,812.30/43,903.60 = 17,666.06/x
  3. Step 3: Cross multiply
    31,812.30x = 43,903.60 × 17,666.06
  4. Step 4: Simplify right side
    31,812.30x = 775,603,631.82
  5. Step 5: Solve for x
    x = 775,603,631.82/31,812.30
  6. Step 6: Final answer
    x = 24,380.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.