Home / 28,648.24-42,989.37-15,500.32

Finding the Fourth Proportional to 28,648.24, 42,989.37 and 15,500.32

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Solution

The fourth proportional to 28,648.24, 42,989.37 and 15,500.32 is: 23,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.24 : 42,989.37 = 15,500.32 : x
  2. Step 2: Convert to fraction form
    28,648.24/42,989.37 = 15,500.32/x
  3. Step 3: Cross multiply
    28,648.24x = 42,989.37 × 15,500.32
  4. Step 4: Simplify right side
    28,648.24x = 666,348,991.60
  5. Step 5: Solve for x
    x = 666,348,991.60/28,648.24
  6. Step 6: Final answer
    x = 23,259.68

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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.