Home / 28,190.87-42,255.74-14,116.97

Finding the Fourth Proportional to 28,190.87, 42,255.74 and 14,116.97

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Solution

The fourth proportional to 28,190.87, 42,255.74 and 14,116.97 is: 21,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.87 : 42,255.74 = 14,116.97 : x
  2. Step 2: Convert to fraction form
    28,190.87/42,255.74 = 14,116.97/x
  3. Step 3: Cross multiply
    28,190.87x = 42,255.74 × 14,116.97
  4. Step 4: Simplify right side
    28,190.87x = 596,523,154.84
  5. Step 5: Solve for x
    x = 596,523,154.84/28,190.87
  6. Step 6: Final answer
    x = 21,160.15

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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.