Home / 29,220.21-40,323.90-15,791.46

Finding the Fourth Proportional to 29,220.21, 40,323.90 and 15,791.46

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Solution

The fourth proportional to 29,220.21, 40,323.90 and 15,791.46 is: 21,792.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,220.21 : 40,323.90 = 15,791.46 : x
  2. Step 2: Convert to fraction form
    29,220.21/40,323.90 = 15,791.46/x
  3. Step 3: Cross multiply
    29,220.21x = 40,323.90 × 15,791.46
  4. Step 4: Simplify right side
    29,220.21x = 636,773,253.89
  5. Step 5: Solve for x
    x = 636,773,253.89/29,220.21
  6. Step 6: Final answer
    x = 21,792.22

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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.