Home / 42,021.50-63,033.47-10,856.75

Finding the Fourth Proportional to 42,021.50, 63,033.47 and 10,856.75

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Solution

The fourth proportional to 42,021.50, 63,033.47 and 10,856.75 is: 16,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.50 : 63,033.47 = 10,856.75 : x
  2. Step 2: Convert to fraction form
    42,021.50/63,033.47 = 10,856.75/x
  3. Step 3: Cross multiply
    42,021.50x = 63,033.47 × 10,856.75
  4. Step 4: Simplify right side
    42,021.50x = 684,338,571.14
  5. Step 5: Solve for x
    x = 684,338,571.14/42,021.50
  6. Step 6: Final answer
    x = 16,285.44

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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.