Home / 35,387.18-53,040.53-18,494.15

Finding the Fourth Proportional to 35,387.18, 53,040.53 and 18,494.15

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Solution

The fourth proportional to 35,387.18, 53,040.53 and 18,494.15 is: 27,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,387.18 : 53,040.53 = 18,494.15 : x
  2. Step 2: Convert to fraction form
    35,387.18/53,040.53 = 18,494.15/x
  3. Step 3: Cross multiply
    35,387.18x = 53,040.53 × 18,494.15
  4. Step 4: Simplify right side
    35,387.18x = 980,939,298.93
  5. Step 5: Solve for x
    x = 980,939,298.93/35,387.18
  6. Step 6: Final answer
    x = 27,720.19

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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.