Home / 37,420.38-51,638.49-20,424.18

Finding the Fourth Proportional to 37,420.38, 51,638.49 and 20,424.18

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Solution

The fourth proportional to 37,420.38, 51,638.49 and 20,424.18 is: 28,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.38 : 51,638.49 = 20,424.18 : x
  2. Step 2: Convert to fraction form
    37,420.38/51,638.49 = 20,424.18/x
  3. Step 3: Cross multiply
    37,420.38x = 51,638.49 × 20,424.18
  4. Step 4: Simplify right side
    37,420.38x = 1,054,673,814.69
  5. Step 5: Solve for x
    x = 1,054,673,814.69/37,420.38
  6. Step 6: Final answer
    x = 28,184.48

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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.