Home / 42,161.08-63,239.34-21,384.04

Finding the Fourth Proportional to 42,161.08, 63,239.34 and 21,384.04

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Solution

The fourth proportional to 42,161.08, 63,239.34 and 21,384.04 is: 32,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,161.08 : 63,239.34 = 21,384.04 : x
  2. Step 2: Convert to fraction form
    42,161.08/63,239.34 = 21,384.04/x
  3. Step 3: Cross multiply
    42,161.08x = 63,239.34 × 21,384.04
  4. Step 4: Simplify right side
    42,161.08x = 1,352,312,576.13
  5. Step 5: Solve for x
    x = 1,352,312,576.13/42,161.08
  6. Step 6: Final answer
    x = 32,074.90

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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.