Home / 28,446.48-39,252.24-15,868.80

Finding the Fourth Proportional to 28,446.48, 39,252.24 and 15,868.80

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Solution

The fourth proportional to 28,446.48, 39,252.24 and 15,868.80 is: 21,896.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.48 : 39,252.24 = 15,868.80 : x
  2. Step 2: Convert to fraction form
    28,446.48/39,252.24 = 15,868.80/x
  3. Step 3: Cross multiply
    28,446.48x = 39,252.24 × 15,868.80
  4. Step 4: Simplify right side
    28,446.48x = 622,885,946.11
  5. Step 5: Solve for x
    x = 622,885,946.11/28,446.48
  6. Step 6: Final answer
    x = 21,896.77

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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.