Home / 29,032.21-40,017.81-21,851.56

Finding the Fourth Proportional to 29,032.21, 40,017.81 and 21,851.56

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Solution

The fourth proportional to 29,032.21, 40,017.81 and 21,851.56 is: 30,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,032.21 : 40,017.81 = 21,851.56 : x
  2. Step 2: Convert to fraction form
    29,032.21/40,017.81 = 21,851.56/x
  3. Step 3: Cross multiply
    29,032.21x = 40,017.81 × 21,851.56
  4. Step 4: Simplify right side
    29,032.21x = 874,451,576.28
  5. Step 5: Solve for x
    x = 874,451,576.28/29,032.21
  6. Step 6: Final answer
    x = 30,120.05

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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.