Home / 22,001.12-30,361.45-11,929.53

Finding the Fourth Proportional to 22,001.12, 30,361.45 and 11,929.53

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Solution

The fourth proportional to 22,001.12, 30,361.45 and 11,929.53 is: 16,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.12 : 30,361.45 = 11,929.53 : x
  2. Step 2: Convert to fraction form
    22,001.12/30,361.45 = 11,929.53/x
  3. Step 3: Cross multiply
    22,001.12x = 30,361.45 × 11,929.53
  4. Step 4: Simplify right side
    22,001.12x = 362,197,828.62
  5. Step 5: Solve for x
    x = 362,197,828.62/22,001.12
  6. Step 6: Final answer
    x = 16,462.70

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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.