Home / 22,246.08-30,706.56-12,821.12

Finding the Fourth Proportional to 22,246.08, 30,706.56 and 12,821.12

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Solution

The fourth proportional to 22,246.08, 30,706.56 and 12,821.12 is: 17,697.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,246.08 : 30,706.56 = 12,821.12 : x
  2. Step 2: Convert to fraction form
    22,246.08/30,706.56 = 12,821.12/x
  3. Step 3: Cross multiply
    22,246.08x = 30,706.56 × 12,821.12
  4. Step 4: Simplify right side
    22,246.08x = 393,692,490.55
  5. Step 5: Solve for x
    x = 393,692,490.55/22,246.08
  6. Step 6: Final answer
    x = 17,697.16

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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.