Home / 18,721.09-25,953.40-17,722.36

Finding the Fourth Proportional to 18,721.09, 25,953.40 and 17,722.36

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Solution

The fourth proportional to 18,721.09, 25,953.40 and 17,722.36 is: 24,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.09 : 25,953.40 = 17,722.36 : x
  2. Step 2: Convert to fraction form
    18,721.09/25,953.40 = 17,722.36/x
  3. Step 3: Cross multiply
    18,721.09x = 25,953.40 × 17,722.36
  4. Step 4: Simplify right side
    18,721.09x = 459,955,498.02
  5. Step 5: Solve for x
    x = 459,955,498.02/18,721.09
  6. Step 6: Final answer
    x = 24,568.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.