Home / 19,278.15-28,890.23-15,336.15

Finding the Fourth Proportional to 19,278.15, 28,890.23 and 15,336.15

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Solution

The fourth proportional to 19,278.15, 28,890.23 and 15,336.15 is: 22,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.15 : 28,890.23 = 15,336.15 : x
  2. Step 2: Convert to fraction form
    19,278.15/28,890.23 = 15,336.15/x
  3. Step 3: Cross multiply
    19,278.15x = 28,890.23 × 15,336.15
  4. Step 4: Simplify right side
    19,278.15x = 443,064,824.13
  5. Step 5: Solve for x
    x = 443,064,824.13/19,278.15
  6. Step 6: Final answer
    x = 22,982.75

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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.