Home / 35,987.22-53,988.66-20,207.88

Finding the Fourth Proportional to 35,987.22, 53,988.66 and 20,207.88

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Solution

The fourth proportional to 35,987.22, 53,988.66 and 20,207.88 is: 30,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.22 : 53,988.66 = 20,207.88 : x
  2. Step 2: Convert to fraction form
    35,987.22/53,988.66 = 20,207.88/x
  3. Step 3: Cross multiply
    35,987.22x = 53,988.66 × 20,207.88
  4. Step 4: Simplify right side
    35,987.22x = 1,090,996,362.64
  5. Step 5: Solve for x
    x = 1,090,996,362.64/35,987.22
  6. Step 6: Final answer
    x = 30,316.22

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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.