Home / 22,948.81-31,672.94-12,881.33

Finding the Fourth Proportional to 22,948.81, 31,672.94 and 12,881.33

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Solution

The fourth proportional to 22,948.81, 31,672.94 and 12,881.33 is: 17,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,948.81 : 31,672.94 = 12,881.33 : x
  2. Step 2: Convert to fraction form
    22,948.81/31,672.94 = 12,881.33/x
  3. Step 3: Cross multiply
    22,948.81x = 31,672.94 × 12,881.33
  4. Step 4: Simplify right side
    22,948.81x = 407,989,592.21
  5. Step 5: Solve for x
    x = 407,989,592.21/22,948.81
  6. Step 6: Final answer
    x = 17,778.25

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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.