Home / 20,308.02-28,026.30-11,356.12

Finding the Fourth Proportional to 20,308.02, 28,026.30 and 11,356.12

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Solution

The fourth proportional to 20,308.02, 28,026.30 and 11,356.12 is: 15,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.02 : 28,026.30 = 11,356.12 : x
  2. Step 2: Convert to fraction form
    20,308.02/28,026.30 = 11,356.12/x
  3. Step 3: Cross multiply
    20,308.02x = 28,026.30 × 11,356.12
  4. Step 4: Simplify right side
    20,308.02x = 318,270,025.96
  5. Step 5: Solve for x
    x = 318,270,025.96/20,308.02
  6. Step 6: Final answer
    x = 15,672.13

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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.