Home / 34,868.20-52,302.30-20,871.40

Finding the Fourth Proportional to 34,868.20, 52,302.30 and 20,871.40

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Solution

The fourth proportional to 34,868.20, 52,302.30 and 20,871.40 is: 31,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,868.20 : 52,302.30 = 20,871.40 : x
  2. Step 2: Convert to fraction form
    34,868.20/52,302.30 = 20,871.40/x
  3. Step 3: Cross multiply
    34,868.20x = 52,302.30 × 20,871.40
  4. Step 4: Simplify right side
    34,868.20x = 1,091,622,224.22
  5. Step 5: Solve for x
    x = 1,091,622,224.22/34,868.20
  6. Step 6: Final answer
    x = 31,307.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.