Home / 20,714.17-28,602.40-16,886.40

Finding the Fourth Proportional to 20,714.17, 28,602.40 and 16,886.40

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Solution

The fourth proportional to 20,714.17, 28,602.40 and 16,886.40 is: 23,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.17 : 28,602.40 = 16,886.40 : x
  2. Step 2: Convert to fraction form
    20,714.17/28,602.40 = 16,886.40/x
  3. Step 3: Cross multiply
    20,714.17x = 28,602.40 × 16,886.40
  4. Step 4: Simplify right side
    20,714.17x = 482,991,567.36
  5. Step 5: Solve for x
    x = 482,991,567.36/20,714.17
  6. Step 6: Final answer
    x = 23,316.96

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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.