Home / 29,123.43-40,163.67-21,588.53

Finding the Fourth Proportional to 29,123.43, 40,163.67 and 21,588.53

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Solution

The fourth proportional to 29,123.43, 40,163.67 and 21,588.53 is: 29,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,123.43 : 40,163.67 = 21,588.53 : x
  2. Step 2: Convert to fraction form
    29,123.43/40,163.67 = 21,588.53/x
  3. Step 3: Cross multiply
    29,123.43x = 40,163.67 × 21,588.53
  4. Step 4: Simplify right side
    29,123.43x = 867,074,393.89
  5. Step 5: Solve for x
    x = 867,074,393.89/29,123.43
  6. Step 6: Final answer
    x = 29,772.40

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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.