Home / 20,293.94-28,023.45-12,753.34

Finding the Fourth Proportional to 20,293.94, 28,023.45 and 12,753.34

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Solution

The fourth proportional to 20,293.94, 28,023.45 and 12,753.34 is: 17,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.94 : 28,023.45 = 12,753.34 : x
  2. Step 2: Convert to fraction form
    20,293.94/28,023.45 = 12,753.34/x
  3. Step 3: Cross multiply
    20,293.94x = 28,023.45 × 12,753.34
  4. Step 4: Simplify right side
    20,293.94x = 357,392,445.71
  5. Step 5: Solve for x
    x = 357,392,445.71/20,293.94
  6. Step 6: Final answer
    x = 17,610.80

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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.