Home / 20,768.94-31,121.51-14,096.76

Finding the Fourth Proportional to 20,768.94, 31,121.51 and 14,096.76

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Solution

The fourth proportional to 20,768.94, 31,121.51 and 14,096.76 is: 21,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768.94 : 31,121.51 = 14,096.76 : x
  2. Step 2: Convert to fraction form
    20,768.94/31,121.51 = 14,096.76/x
  3. Step 3: Cross multiply
    20,768.94x = 31,121.51 × 14,096.76
  4. Step 4: Simplify right side
    20,768.94x = 438,712,386.82
  5. Step 5: Solve for x
    x = 438,712,386.82/20,768.94
  6. Step 6: Final answer
    x = 21,123.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.