Home / 34,756.72-52,127.08-20,720.70

Finding the Fourth Proportional to 34,756.72, 52,127.08 and 20,720.70

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Solution

The fourth proportional to 34,756.72, 52,127.08 and 20,720.70 is: 31,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,756.72 : 52,127.08 = 20,720.70 : x
  2. Step 2: Convert to fraction form
    34,756.72/52,127.08 = 20,720.70/x
  3. Step 3: Cross multiply
    34,756.72x = 52,127.08 × 20,720.70
  4. Step 4: Simplify right side
    34,756.72x = 1,080,109,534.75
  5. Step 5: Solve for x
    x = 1,080,109,534.75/34,756.72
  6. Step 6: Final answer
    x = 31,076.28

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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.