Home / 28,648.53-42,975.09-10,887.70

Finding the Fourth Proportional to 28,648.53, 42,975.09 and 10,887.70

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Solution

The fourth proportional to 28,648.53, 42,975.09 and 10,887.70 is: 16,332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.53 : 42,975.09 = 10,887.70 : x
  2. Step 2: Convert to fraction form
    28,648.53/42,975.09 = 10,887.70/x
  3. Step 3: Cross multiply
    28,648.53x = 42,975.09 × 10,887.70
  4. Step 4: Simplify right side
    28,648.53x = 467,899,887.39
  5. Step 5: Solve for x
    x = 467,899,887.39/28,648.53
  6. Step 6: Final answer
    x = 16,332.42

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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.