Home / 35,207.51-52,794.86-20,420.66

Finding the Fourth Proportional to 35,207.51, 52,794.86 and 20,420.66

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Solution

The fourth proportional to 35,207.51, 52,794.86 and 20,420.66 is: 30,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,207.51 : 52,794.86 = 20,420.66 : x
  2. Step 2: Convert to fraction form
    35,207.51/52,794.86 = 20,420.66/x
  3. Step 3: Cross multiply
    35,207.51x = 52,794.86 × 20,420.66
  4. Step 4: Simplify right side
    35,207.51x = 1,078,105,791.02
  5. Step 5: Solve for x
    x = 1,078,105,791.02/35,207.51
  6. Step 6: Final answer
    x = 30,621.47

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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.