Home / 20,729.77-31,094.51-5,938.70

Finding the Fourth Proportional to 20,729.77, 31,094.51 and 5,938.70

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Solution

The fourth proportional to 20,729.77, 31,094.51 and 5,938.70 is: 8,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.77 : 31,094.51 = 5,938.70 : x
  2. Step 2: Convert to fraction form
    20,729.77/31,094.51 = 5,938.70/x
  3. Step 3: Cross multiply
    20,729.77x = 31,094.51 × 5,938.70
  4. Step 4: Simplify right side
    20,729.77x = 184,660,936.84
  5. Step 5: Solve for x
    x = 184,660,936.84/20,729.77
  6. Step 6: Final answer
    x = 8,908.01

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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.