Home / 28,169.08-42,225.54-15,694.72

Finding the Fourth Proportional to 28,169.08, 42,225.54 and 15,694.72

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Solution

The fourth proportional to 28,169.08, 42,225.54 and 15,694.72 is: 23,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.08 : 42,225.54 = 15,694.72 : x
  2. Step 2: Convert to fraction form
    28,169.08/42,225.54 = 15,694.72/x
  3. Step 3: Cross multiply
    28,169.08x = 42,225.54 × 15,694.72
  4. Step 4: Simplify right side
    28,169.08x = 662,718,027.15
  5. Step 5: Solve for x
    x = 662,718,027.15/28,169.08
  6. Step 6: Final answer
    x = 23,526.43

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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.