Home / 22,210.16-30,656.80-13,714.88

Finding the Fourth Proportional to 22,210.16, 30,656.80 and 13,714.88

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Solution

The fourth proportional to 22,210.16, 30,656.80 and 13,714.88 is: 18,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.16 : 30,656.80 = 13,714.88 : x
  2. Step 2: Convert to fraction form
    22,210.16/30,656.80 = 13,714.88/x
  3. Step 3: Cross multiply
    22,210.16x = 30,656.80 × 13,714.88
  4. Step 4: Simplify right side
    22,210.16x = 420,454,333.18
  5. Step 5: Solve for x
    x = 420,454,333.18/22,210.16
  6. Step 6: Final answer
    x = 18,930.72

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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.