Home / 22,705.22-31,335.77-13,015.58

Finding the Fourth Proportional to 22,705.22, 31,335.77 and 13,015.58

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Solution

The fourth proportional to 22,705.22, 31,335.77 and 13,015.58 is: 17,962.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,705.22 : 31,335.77 = 13,015.58 : x
  2. Step 2: Convert to fraction form
    22,705.22/31,335.77 = 13,015.58/x
  3. Step 3: Cross multiply
    22,705.22x = 31,335.77 × 13,015.58
  4. Step 4: Simplify right side
    22,705.22x = 407,853,156.22
  5. Step 5: Solve for x
    x = 407,853,156.22/22,705.22
  6. Step 6: Final answer
    x = 17,962.97

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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.