Home / 15,217.64-20,976.72-14,922.39

Finding the Fourth Proportional to 15,217.64, 20,976.72 and 14,922.39

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Solution

The fourth proportional to 15,217.64, 20,976.72 and 14,922.39 is: 20,569.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,217.64 : 20,976.72 = 14,922.39 : x
  2. Step 2: Convert to fraction form
    15,217.64/20,976.72 = 14,922.39/x
  3. Step 3: Cross multiply
    15,217.64x = 20,976.72 × 14,922.39
  4. Step 4: Simplify right side
    15,217.64x = 313,022,903.40
  5. Step 5: Solve for x
    x = 313,022,903.40/15,217.64
  6. Step 6: Final answer
    x = 20,569.74

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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.