Home / 22,455.28-31,001.61-19,964.35

Finding the Fourth Proportional to 22,455.28, 31,001.61 and 19,964.35

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Solution

The fourth proportional to 22,455.28, 31,001.61 and 19,964.35 is: 27,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.28 : 31,001.61 = 19,964.35 : x
  2. Step 2: Convert to fraction form
    22,455.28/31,001.61 = 19,964.35/x
  3. Step 3: Cross multiply
    22,455.28x = 31,001.61 × 19,964.35
  4. Step 4: Simplify right side
    22,455.28x = 618,926,992.60
  5. Step 5: Solve for x
    x = 618,926,992.60/22,455.28
  6. Step 6: Final answer
    x = 27,562.65

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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.