Home / 17,727.36-24,488.64-12,785.28

Finding the Fourth Proportional to 17,727.36, 24,488.64 and 12,785.28

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Solution

The fourth proportional to 17,727.36, 24,488.64 and 12,785.28 is: 17,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,727.36 : 24,488.64 = 12,785.28 : x
  2. Step 2: Convert to fraction form
    17,727.36/24,488.64 = 12,785.28/x
  3. Step 3: Cross multiply
    17,727.36x = 24,488.64 × 12,785.28
  4. Step 4: Simplify right side
    17,727.36x = 313,094,119.22
  5. Step 5: Solve for x
    x = 313,094,119.22/17,727.36
  6. Step 6: Final answer
    x = 17,661.63

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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.