Home / 19,896.85-27,457.79-10,822.21

Finding the Fourth Proportional to 19,896.85, 27,457.79 and 10,822.21

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Solution

The fourth proportional to 19,896.85, 27,457.79 and 10,822.21 is: 14,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,896.85 : 27,457.79 = 10,822.21 : x
  2. Step 2: Convert to fraction form
    19,896.85/27,457.79 = 10,822.21/x
  3. Step 3: Cross multiply
    19,896.85x = 27,457.79 × 10,822.21
  4. Step 4: Simplify right side
    19,896.85x = 297,153,969.52
  5. Step 5: Solve for x
    x = 297,153,969.52/19,896.85
  6. Step 6: Final answer
    x = 14,934.72

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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.