Home / 22,955.46-31,678.45-13,401.91

Finding the Fourth Proportional to 22,955.46, 31,678.45 and 13,401.91

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Solution

The fourth proportional to 22,955.46, 31,678.45 and 13,401.91 is: 18,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,955.46 : 31,678.45 = 13,401.91 : x
  2. Step 2: Convert to fraction form
    22,955.46/31,678.45 = 13,401.91/x
  3. Step 3: Cross multiply
    22,955.46x = 31,678.45 × 13,401.91
  4. Step 4: Simplify right side
    22,955.46x = 424,551,735.84
  5. Step 5: Solve for x
    x = 424,551,735.84/22,955.46
  6. Step 6: Final answer
    x = 18,494.59

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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.