Home / 28,515.46-39,351.26-15,594.74

Finding the Fourth Proportional to 28,515.46, 39,351.26 and 15,594.74

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Solution

The fourth proportional to 28,515.46, 39,351.26 and 15,594.74 is: 21,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.46 : 39,351.26 = 15,594.74 : x
  2. Step 2: Convert to fraction form
    28,515.46/39,351.26 = 15,594.74/x
  3. Step 3: Cross multiply
    28,515.46x = 39,351.26 × 15,594.74
  4. Step 4: Simplify right side
    28,515.46x = 613,672,668.37
  5. Step 5: Solve for x
    x = 613,672,668.37/28,515.46
  6. Step 6: Final answer
    x = 21,520.70

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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.