Home / 22,491.42-31,032.63-13,989.66

Finding the Fourth Proportional to 22,491.42, 31,032.63 and 13,989.66

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Solution

The fourth proportional to 22,491.42, 31,032.63 and 13,989.66 is: 19,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.42 : 31,032.63 = 13,989.66 : x
  2. Step 2: Convert to fraction form
    22,491.42/31,032.63 = 13,989.66/x
  3. Step 3: Cross multiply
    22,491.42x = 31,032.63 × 13,989.66
  4. Step 4: Simplify right side
    22,491.42x = 434,135,942.61
  5. Step 5: Solve for x
    x = 434,135,942.61/22,491.42
  6. Step 6: Final answer
    x = 19,302.29

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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.