Home / 20,215.24-27,694.98-19,457.68

Finding the Fourth Proportional to 20,215.24, 27,694.98 and 19,457.68

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Solution

The fourth proportional to 20,215.24, 27,694.98 and 19,457.68 is: 26,657.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.24 : 27,694.98 = 19,457.68 : x
  2. Step 2: Convert to fraction form
    20,215.24/27,694.98 = 19,457.68/x
  3. Step 3: Cross multiply
    20,215.24x = 27,694.98 × 19,457.68
  4. Step 4: Simplify right side
    20,215.24x = 538,879,961.16
  5. Step 5: Solve for x
    x = 538,879,961.16/20,215.24
  6. Step 6: Final answer
    x = 26,657.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.