Home / 28,405.24-42,531.65-15,889.62

Finding the Fourth Proportional to 28,405.24, 42,531.65 and 15,889.62

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Solution

The fourth proportional to 28,405.24, 42,531.65 and 15,889.62 is: 23,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.24 : 42,531.65 = 15,889.62 : x
  2. Step 2: Convert to fraction form
    28,405.24/42,531.65 = 15,889.62/x
  3. Step 3: Cross multiply
    28,405.24x = 42,531.65 × 15,889.62
  4. Step 4: Simplify right side
    28,405.24x = 675,811,796.20
  5. Step 5: Solve for x
    x = 675,811,796.20/28,405.24
  6. Step 6: Final answer
    x = 23,791.80

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1.5x scale

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.