Home / 37,638.96-51,938.94-20,640.48

Finding the Fourth Proportional to 37,638.96, 51,938.94 and 20,640.48

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Solution

The fourth proportional to 37,638.96, 51,938.94 and 20,640.48 is: 28,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,638.96 : 51,938.94 = 20,640.48 : x
  2. Step 2: Convert to fraction form
    37,638.96/51,938.94 = 20,640.48/x
  3. Step 3: Cross multiply
    37,638.96x = 51,938.94 × 20,640.48
  4. Step 4: Simplify right side
    37,638.96x = 1,072,044,652.29
  5. Step 5: Solve for x
    x = 1,072,044,652.29/37,638.96
  6. Step 6: Final answer
    x = 28,482.31

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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.