Home / 21,288.02-31,928.38-5,702

Finding the Fourth Proportional to 21,288.02, 31,928.38 and 5,702

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Solution

The fourth proportional to 21,288.02, 31,928.38 and 5,702 is: 8,552.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288.02 : 31,928.38 = 5,702 : x
  2. Step 2: Convert to fraction form
    21,288.02/31,928.38 = 5,702/x
  3. Step 3: Cross multiply
    21,288.02x = 31,928.38 × 5,702
  4. Step 4: Simplify right side
    21,288.02x = 182,055,622.76
  5. Step 5: Solve for x
    x = 182,055,622.76/21,288.02
  6. Step 6: Final answer
    x = 8,552.02

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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.