Home / 22,815.14-31,484.58-12,743.74

Finding the Fourth Proportional to 22,815.14, 31,484.58 and 12,743.74

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Solution

The fourth proportional to 22,815.14, 31,484.58 and 12,743.74 is: 17,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,815.14 : 31,484.58 = 12,743.74 : x
  2. Step 2: Convert to fraction form
    22,815.14/31,484.58 = 12,743.74/x
  3. Step 3: Cross multiply
    22,815.14x = 31,484.58 × 12,743.74
  4. Step 4: Simplify right side
    22,815.14x = 401,231,144.11
  5. Step 5: Solve for x
    x = 401,231,144.11/22,815.14
  6. Step 6: Final answer
    x = 17,586.18

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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.