Home / 28,113.30-38,797.39-15,367.35

Finding the Fourth Proportional to 28,113.30, 38,797.39 and 15,367.35

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Solution

The fourth proportional to 28,113.30, 38,797.39 and 15,367.35 is: 21,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.30 : 38,797.39 = 15,367.35 : x
  2. Step 2: Convert to fraction form
    28,113.30/38,797.39 = 15,367.35/x
  3. Step 3: Cross multiply
    28,113.30x = 38,797.39 × 15,367.35
  4. Step 4: Simplify right side
    28,113.30x = 596,212,930.17
  5. Step 5: Solve for x
    x = 596,212,930.17/28,113.30
  6. Step 6: Final answer
    x = 21,207.50

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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.