Home / 22,836.69-31,528.62-15,678.36

Finding the Fourth Proportional to 22,836.69, 31,528.62 and 15,678.36

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Solution

The fourth proportional to 22,836.69, 31,528.62 and 15,678.36 is: 21,645.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,836.69 : 31,528.62 = 15,678.36 : x
  2. Step 2: Convert to fraction form
    22,836.69/31,528.62 = 15,678.36/x
  3. Step 3: Cross multiply
    22,836.69x = 31,528.62 × 15,678.36
  4. Step 4: Simplify right side
    22,836.69x = 494,317,054.66
  5. Step 5: Solve for x
    x = 494,317,054.66/22,836.69
  6. Step 6: Final answer
    x = 21,645.74

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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.