Home / 38,655.08-57,991.62-12,357.80

Finding the Fourth Proportional to 38,655.08, 57,991.62 and 12,357.80

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Solution

The fourth proportional to 38,655.08, 57,991.62 and 12,357.80 is: 18,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655.08 : 57,991.62 = 12,357.80 : x
  2. Step 2: Convert to fraction form
    38,655.08/57,991.62 = 12,357.80/x
  3. Step 3: Cross multiply
    38,655.08x = 57,991.62 × 12,357.80
  4. Step 4: Simplify right side
    38,655.08x = 716,648,841.64
  5. Step 5: Solve for x
    x = 716,648,841.64/38,655.08
  6. Step 6: Final answer
    x = 18,539.58

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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.