Home / 20,283.36-27,985.92-11,898.24

Finding the Fourth Proportional to 20,283.36, 27,985.92 and 11,898.24

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Solution

The fourth proportional to 20,283.36, 27,985.92 and 11,898.24 is: 16,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.36 : 27,985.92 = 11,898.24 : x
  2. Step 2: Convert to fraction form
    20,283.36/27,985.92 = 11,898.24/x
  3. Step 3: Cross multiply
    20,283.36x = 27,985.92 × 11,898.24
  4. Step 4: Simplify right side
    20,283.36x = 332,983,192.78
  5. Step 5: Solve for x
    x = 332,983,192.78/20,283.36
  6. Step 6: Final answer
    x = 16,416.57

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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.