Home / 42,297.30-63,455.04-12,712.68

Finding the Fourth Proportional to 42,297.30, 63,455.04 and 12,712.68

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Solution

The fourth proportional to 42,297.30, 63,455.04 and 12,712.68 is: 19,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,297.30 : 63,455.04 = 12,712.68 : x
  2. Step 2: Convert to fraction form
    42,297.30/63,455.04 = 12,712.68/x
  3. Step 3: Cross multiply
    42,297.30x = 63,455.04 × 12,712.68
  4. Step 4: Simplify right side
    42,297.30x = 806,683,617.91
  5. Step 5: Solve for x
    x = 806,683,617.91/42,297.30
  6. Step 6: Final answer
    x = 19,071.75

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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.