Home / 22,127.02-30,519.61-21,394.78

Finding the Fourth Proportional to 22,127.02, 30,519.61 and 21,394.78

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Solution

The fourth proportional to 22,127.02, 30,519.61 and 21,394.78 is: 29,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,127.02 : 30,519.61 = 21,394.78 : x
  2. Step 2: Convert to fraction form
    22,127.02/30,519.61 = 21,394.78/x
  3. Step 3: Cross multiply
    22,127.02x = 30,519.61 × 21,394.78
  4. Step 4: Simplify right side
    22,127.02x = 652,960,211.85
  5. Step 5: Solve for x
    x = 652,960,211.85/22,127.02
  6. Step 6: Final answer
    x = 29,509.64

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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.