Home / 22,711.14-31,341.36-12,775.14

Finding the Fourth Proportional to 22,711.14, 31,341.36 and 12,775.14

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Solution

The fourth proportional to 22,711.14, 31,341.36 and 12,775.14 is: 17,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.14 : 31,341.36 = 12,775.14 : x
  2. Step 2: Convert to fraction form
    22,711.14/31,341.36 = 12,775.14/x
  3. Step 3: Cross multiply
    22,711.14x = 31,341.36 × 12,775.14
  4. Step 4: Simplify right side
    22,711.14x = 400,390,261.79
  5. Step 5: Solve for x
    x = 400,390,261.79/22,711.14
  6. Step 6: Final answer
    x = 17,629.69

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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.