Home / 20,897.28-28,827.60-14,184.96

Finding the Fourth Proportional to 20,897.28, 28,827.60 and 14,184.96

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Solution

The fourth proportional to 20,897.28, 28,827.60 and 14,184.96 is: 19,568.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.28 : 28,827.60 = 14,184.96 : x
  2. Step 2: Convert to fraction form
    20,897.28/28,827.60 = 14,184.96/x
  3. Step 3: Cross multiply
    20,897.28x = 28,827.60 × 14,184.96
  4. Step 4: Simplify right side
    20,897.28x = 408,918,352.90
  5. Step 5: Solve for x
    x = 408,918,352.90/20,897.28
  6. Step 6: Final answer
    x = 19,568.02

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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.