Home / 20,714.32-28,573.66-14,657.76

Finding the Fourth Proportional to 20,714.32, 28,573.66 and 14,657.76

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Solution

The fourth proportional to 20,714.32, 28,573.66 and 14,657.76 is: 20,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.32 : 28,573.66 = 14,657.76 : x
  2. Step 2: Convert to fraction form
    20,714.32/28,573.66 = 14,657.76/x
  3. Step 3: Cross multiply
    20,714.32x = 28,573.66 × 14,657.76
  4. Step 4: Simplify right side
    20,714.32x = 418,825,850.60
  5. Step 5: Solve for x
    x = 418,825,850.60/20,714.32
  6. Step 6: Final answer
    x = 20,219.15

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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.