Home / 42,395.46-63,593.76-12,813.54

Finding the Fourth Proportional to 42,395.46, 63,593.76 and 12,813.54

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Solution

The fourth proportional to 42,395.46, 63,593.76 and 12,813.54 is: 19,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,395.46 : 63,593.76 = 12,813.54 : x
  2. Step 2: Convert to fraction form
    42,395.46/63,593.76 = 12,813.54/x
  3. Step 3: Cross multiply
    42,395.46x = 63,593.76 × 12,813.54
  4. Step 4: Simplify right side
    42,395.46x = 814,861,187.51
  5. Step 5: Solve for x
    x = 814,861,187.51/42,395.46
  6. Step 6: Final answer
    x = 19,220.48

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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.