Home / 42,355.45-63,491.86-20,162.86

Finding the Fourth Proportional to 42,355.45, 63,491.86 and 20,162.86

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Solution

The fourth proportional to 42,355.45, 63,491.86 and 20,162.86 is: 30,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,355.45 : 63,491.86 = 20,162.86 : x
  2. Step 2: Convert to fraction form
    42,355.45/63,491.86 = 20,162.86/x
  3. Step 3: Cross multiply
    42,355.45x = 63,491.86 × 20,162.86
  4. Step 4: Simplify right side
    42,355.45x = 1,280,177,383.51
  5. Step 5: Solve for x
    x = 1,280,177,383.51/42,355.45
  6. Step 6: Final answer
    x = 30,224.62

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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.