Home / 55,267.04-82,839-21,978.20

Finding the Fourth Proportional to 55,267.04, 82,839 and 21,978.20

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Solution

The fourth proportional to 55,267.04, 82,839 and 21,978.20 is: 32,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,267.04 : 82,839 = 21,978.20 : x
  2. Step 2: Convert to fraction form
    55,267.04/82,839 = 21,978.20/x
  3. Step 3: Cross multiply
    55,267.04x = 82,839 × 21,978.20
  4. Step 4: Simplify right side
    55,267.04x = 1,820,652,109.80
  5. Step 5: Solve for x
    x = 1,820,652,109.80/55,267.04
  6. Step 6: Final answer
    x = 32,942.82

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1.5x scale

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.