Home / 19,855.32-27,400.80-11,358.24

Finding the Fourth Proportional to 19,855.32, 27,400.80 and 11,358.24

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Solution

The fourth proportional to 19,855.32, 27,400.80 and 11,358.24 is: 15,674.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.32 : 27,400.80 = 11,358.24 : x
  2. Step 2: Convert to fraction form
    19,855.32/27,400.80 = 11,358.24/x
  3. Step 3: Cross multiply
    19,855.32x = 27,400.80 × 11,358.24
  4. Step 4: Simplify right side
    19,855.32x = 311,224,862.59
  5. Step 5: Solve for x
    x = 311,224,862.59/19,855.32
  6. Step 6: Final answer
    x = 15,674.63

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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.