Home / 28,806.26-39,752.64-15,558.26

Finding the Fourth Proportional to 28,806.26, 39,752.64 and 15,558.26

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Solution

The fourth proportional to 28,806.26, 39,752.64 and 15,558.26 is: 21,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.26 : 39,752.64 = 15,558.26 : x
  2. Step 2: Convert to fraction form
    28,806.26/39,752.64 = 15,558.26/x
  3. Step 3: Cross multiply
    28,806.26x = 39,752.64 × 15,558.26
  4. Step 4: Simplify right side
    28,806.26x = 618,481,908.81
  5. Step 5: Solve for x
    x = 618,481,908.81/28,806.26
  6. Step 6: Final answer
    x = 21,470.40

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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.