Home / 20,600.28-28,427.88-12,530.94

Finding the Fourth Proportional to 20,600.28, 28,427.88 and 12,530.94

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Solution

The fourth proportional to 20,600.28, 28,427.88 and 12,530.94 is: 17,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.28 : 28,427.88 = 12,530.94 : x
  2. Step 2: Convert to fraction form
    20,600.28/28,427.88 = 12,530.94/x
  3. Step 3: Cross multiply
    20,600.28x = 28,427.88 × 12,530.94
  4. Step 4: Simplify right side
    20,600.28x = 356,228,058.61
  5. Step 5: Solve for x
    x = 356,228,058.61/20,600.28
  6. Step 6: Final answer
    x = 17,292.39

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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.