Home / 28,670.94-42,981.87-10,891.62

Finding the Fourth Proportional to 28,670.94, 42,981.87 and 10,891.62

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Solution

The fourth proportional to 28,670.94, 42,981.87 and 10,891.62 is: 16,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670.94 : 42,981.87 = 10,891.62 : x
  2. Step 2: Convert to fraction form
    28,670.94/42,981.87 = 10,891.62/x
  3. Step 3: Cross multiply
    28,670.94x = 42,981.87 × 10,891.62
  4. Step 4: Simplify right side
    28,670.94x = 468,142,194.93
  5. Step 5: Solve for x
    x = 468,142,194.93/28,670.94
  6. Step 6: Final answer
    x = 16,328.11

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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.