Home / 22,578.63-31,148.69-15,868.64

Finding the Fourth Proportional to 22,578.63, 31,148.69 and 15,868.64

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Solution

The fourth proportional to 22,578.63, 31,148.69 and 15,868.64 is: 21,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.63 : 31,148.69 = 15,868.64 : x
  2. Step 2: Convert to fraction form
    22,578.63/31,148.69 = 15,868.64/x
  3. Step 3: Cross multiply
    22,578.63x = 31,148.69 × 15,868.64
  4. Step 4: Simplify right side
    22,578.63x = 494,287,465.62
  5. Step 5: Solve for x
    x = 494,287,465.62/22,578.63
  6. Step 6: Final answer
    x = 21,891.82

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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.