Home / 18,823.86-28,240.95-15,305.12

Finding the Fourth Proportional to 18,823.86, 28,240.95 and 15,305.12

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Solution

The fourth proportional to 18,823.86, 28,240.95 and 15,305.12 is: 22,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.86 : 28,240.95 = 15,305.12 : x
  2. Step 2: Convert to fraction form
    18,823.86/28,240.95 = 15,305.12/x
  3. Step 3: Cross multiply
    18,823.86x = 28,240.95 × 15,305.12
  4. Step 4: Simplify right side
    18,823.86x = 432,231,150.76
  5. Step 5: Solve for x
    x = 432,231,150.76/18,823.86
  6. Step 6: Final answer
    x = 22,961.88

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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.