Home / 19,031.64-28,550.34-13,806.08

Finding the Fourth Proportional to 19,031.64, 28,550.34 and 13,806.08

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Solution

The fourth proportional to 19,031.64, 28,550.34 and 13,806.08 is: 20,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.64 : 28,550.34 = 13,806.08 : x
  2. Step 2: Convert to fraction form
    19,031.64/28,550.34 = 13,806.08/x
  3. Step 3: Cross multiply
    19,031.64x = 28,550.34 × 13,806.08
  4. Step 4: Simplify right side
    19,031.64x = 394,168,137.66
  5. Step 5: Solve for x
    x = 394,168,137.66/19,031.64
  6. Step 6: Final answer
    x = 20,711.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.