Home / 35,631.36-53,431.25-18,988.29

Finding the Fourth Proportional to 35,631.36, 53,431.25 and 18,988.29

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Solution

The fourth proportional to 35,631.36, 53,431.25 and 18,988.29 is: 28,474.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,631.36 : 53,431.25 = 18,988.29 : x
  2. Step 2: Convert to fraction form
    35,631.36/53,431.25 = 18,988.29/x
  3. Step 3: Cross multiply
    35,631.36x = 53,431.25 × 18,988.29
  4. Step 4: Simplify right side
    35,631.36x = 1,014,567,975.12
  5. Step 5: Solve for x
    x = 1,014,567,975.12/35,631.36
  6. Step 6: Final answer
    x = 28,474.02

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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.