Home / 28,811.24-39,759.52-15,563.24

Finding the Fourth Proportional to 28,811.24, 39,759.52 and 15,563.24

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Solution

The fourth proportional to 28,811.24, 39,759.52 and 15,563.24 is: 21,477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.24 : 39,759.52 = 15,563.24 : x
  2. Step 2: Convert to fraction form
    28,811.24/39,759.52 = 15,563.24/x
  3. Step 3: Cross multiply
    28,811.24x = 39,759.52 × 15,563.24
  4. Step 4: Simplify right side
    28,811.24x = 618,786,952.04
  5. Step 5: Solve for x
    x = 618,786,952.04/28,811.24
  6. Step 6: Final answer
    x = 21,477.28

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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.