Home / 28,921.02-43,388.10-9,200.76

Finding the Fourth Proportional to 28,921.02, 43,388.10 and 9,200.76

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Solution

The fourth proportional to 28,921.02, 43,388.10 and 9,200.76 is: 13,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.02 : 43,388.10 = 9,200.76 : x
  2. Step 2: Convert to fraction form
    28,921.02/43,388.10 = 9,200.76/x
  3. Step 3: Cross multiply
    28,921.02x = 43,388.10 × 9,200.76
  4. Step 4: Simplify right side
    28,921.02x = 399,203,494.96
  5. Step 5: Solve for x
    x = 399,203,494.96/28,921.02
  6. Step 6: Final answer
    x = 13,803.23

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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.