Home / 28,405.04-39,198.96-15,832.24

Finding the Fourth Proportional to 28,405.04, 39,198.96 and 15,832.24

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Solution

The fourth proportional to 28,405.04, 39,198.96 and 15,832.24 is: 21,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.04 : 39,198.96 = 15,832.24 : x
  2. Step 2: Convert to fraction form
    28,405.04/39,198.96 = 15,832.24/x
  3. Step 3: Cross multiply
    28,405.04x = 39,198.96 × 15,832.24
  4. Step 4: Simplify right side
    28,405.04x = 620,607,342.47
  5. Step 5: Solve for x
    x = 620,607,342.47/28,405.04
  6. Step 6: Final answer
    x = 21,848.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.