Home / 22,246.48-30,700.16-12,815.04

Finding the Fourth Proportional to 22,246.48, 30,700.16 and 12,815.04

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Solution

The fourth proportional to 22,246.48, 30,700.16 and 12,815.04 is: 17,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,246.48 : 30,700.16 = 12,815.04 : x
  2. Step 2: Convert to fraction form
    22,246.48/30,700.16 = 12,815.04/x
  3. Step 3: Cross multiply
    22,246.48x = 30,700.16 × 12,815.04
  4. Step 4: Simplify right side
    22,246.48x = 393,423,778.41
  5. Step 5: Solve for x
    x = 393,423,778.41/22,246.48
  6. Step 6: Final answer
    x = 17,684.77

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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.