Home / 28,453.68-42,685.98-10,922.12

Finding the Fourth Proportional to 28,453.68, 42,685.98 and 10,922.12

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Solution

The fourth proportional to 28,453.68, 42,685.98 and 10,922.12 is: 16,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.68 : 42,685.98 = 10,922.12 : x
  2. Step 2: Convert to fraction form
    28,453.68/42,685.98 = 10,922.12/x
  3. Step 3: Cross multiply
    28,453.68x = 42,685.98 × 10,922.12
  4. Step 4: Simplify right side
    28,453.68x = 466,221,395.88
  5. Step 5: Solve for x
    x = 466,221,395.88/28,453.68
  6. Step 6: Final answer
    x = 16,385.28

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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.