Home / 21,977.02-30,368.52-15,998.31

Finding the Fourth Proportional to 21,977.02, 30,368.52 and 15,998.31

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Solution

The fourth proportional to 21,977.02, 30,368.52 and 15,998.31 is: 22,106.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.02 : 30,368.52 = 15,998.31 : x
  2. Step 2: Convert to fraction form
    21,977.02/30,368.52 = 15,998.31/x
  3. Step 3: Cross multiply
    21,977.02x = 30,368.52 × 15,998.31
  4. Step 4: Simplify right side
    21,977.02x = 485,844,997.20
  5. Step 5: Solve for x
    x = 485,844,997.20/21,977.02
  6. Step 6: Final answer
    x = 22,106.95

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Double scale
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Similar ratio
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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.