Home / 37,988.38-52,423.32-20,992.60

Finding the Fourth Proportional to 37,988.38, 52,423.32 and 20,992.60

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Solution

The fourth proportional to 37,988.38, 52,423.32 and 20,992.60 is: 28,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,988.38 : 52,423.32 = 20,992.60 : x
  2. Step 2: Convert to fraction form
    37,988.38/52,423.32 = 20,992.60/x
  3. Step 3: Cross multiply
    37,988.38x = 52,423.32 × 20,992.60
  4. Step 4: Simplify right side
    37,988.38x = 1,100,501,787.43
  5. Step 5: Solve for x
    x = 1,100,501,787.43/37,988.38
  6. Step 6: Final answer
    x = 28,969.43

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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.