Home / 18,619.52-25,664.94-15,256.40

Finding the Fourth Proportional to 18,619.52, 25,664.94 and 15,256.40

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Solution

The fourth proportional to 18,619.52, 25,664.94 and 15,256.40 is: 21,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.52 : 25,664.94 = 15,256.40 : x
  2. Step 2: Convert to fraction form
    18,619.52/25,664.94 = 15,256.40/x
  3. Step 3: Cross multiply
    18,619.52x = 25,664.94 × 15,256.40
  4. Step 4: Simplify right side
    18,619.52x = 391,554,590.62
  5. Step 5: Solve for x
    x = 391,554,590.62/18,619.52
  6. Step 6: Final answer
    x = 21,029.25

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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.