Home / 42,455.97-63,683.89-11,291.22

Finding the Fourth Proportional to 42,455.97, 63,683.89 and 11,291.22

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Solution

The fourth proportional to 42,455.97, 63,683.89 and 11,291.22 is: 16,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,455.97 : 63,683.89 = 11,291.22 : x
  2. Step 2: Convert to fraction form
    42,455.97/63,683.89 = 11,291.22/x
  3. Step 3: Cross multiply
    42,455.97x = 63,683.89 × 11,291.22
  4. Step 4: Simplify right side
    42,455.97x = 719,068,784.22
  5. Step 5: Solve for x
    x = 719,068,784.22/42,455.97
  6. Step 6: Final answer
    x = 16,936.81

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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.