Home / 28,180.49-42,289.17-10,650.32

Finding the Fourth Proportional to 28,180.49, 42,289.17 and 10,650.32

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Solution

The fourth proportional to 28,180.49, 42,289.17 and 10,650.32 is: 15,982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.49 : 42,289.17 = 10,650.32 : x
  2. Step 2: Convert to fraction form
    28,180.49/42,289.17 = 10,650.32/x
  3. Step 3: Cross multiply
    28,180.49x = 42,289.17 × 10,650.32
  4. Step 4: Simplify right side
    28,180.49x = 450,392,981.59
  5. Step 5: Solve for x
    x = 450,392,981.59/28,180.49
  6. Step 6: Final answer
    x = 15,982.44

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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.