Home / 37,639.12-51,942.90-20,644.06

Finding the Fourth Proportional to 37,639.12, 51,942.90 and 20,644.06

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Solution

The fourth proportional to 37,639.12, 51,942.90 and 20,644.06 is: 28,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,639.12 : 51,942.90 = 20,644.06 : x
  2. Step 2: Convert to fraction form
    37,639.12/51,942.90 = 20,644.06/x
  3. Step 3: Cross multiply
    37,639.12x = 51,942.90 × 20,644.06
  4. Step 4: Simplify right side
    37,639.12x = 1,072,312,344.17
  5. Step 5: Solve for x
    x = 1,072,312,344.17/37,639.12
  6. Step 6: Final answer
    x = 28,489.30

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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.