Home / 37,420.43-51,641.10-21,290.36

Finding the Fourth Proportional to 37,420.43, 51,641.10 and 21,290.36

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Solution

The fourth proportional to 37,420.43, 51,641.10 and 21,290.36 is: 29,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.43 : 51,641.10 = 21,290.36 : x
  2. Step 2: Convert to fraction form
    37,420.43/51,641.10 = 21,290.36/x
  3. Step 3: Cross multiply
    37,420.43x = 51,641.10 × 21,290.36
  4. Step 4: Simplify right side
    37,420.43x = 1,099,457,351.59
  5. Step 5: Solve for x
    x = 1,099,457,351.59/37,420.43
  6. Step 6: Final answer
    x = 29,381.21

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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.