Home / 42,146.21-63,228.42-22,421.90

Finding the Fourth Proportional to 42,146.21, 63,228.42 and 22,421.90

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Solution

The fourth proportional to 42,146.21, 63,228.42 and 22,421.90 is: 33,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,146.21 : 63,228.42 = 22,421.90 : x
  2. Step 2: Convert to fraction form
    42,146.21/63,228.42 = 22,421.90/x
  3. Step 3: Cross multiply
    42,146.21x = 63,228.42 × 22,421.90
  4. Step 4: Simplify right side
    42,146.21x = 1,417,701,310.40
  5. Step 5: Solve for x
    x = 1,417,701,310.40/42,146.21
  6. Step 6: Final answer
    x = 33,637.69

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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.