Home / 39,427.08-59,142-12,772.44

Finding the Fourth Proportional to 39,427.08, 59,142 and 12,772.44

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Solution

The fourth proportional to 39,427.08, 59,142 and 12,772.44 is: 19,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,427.08 : 59,142 = 12,772.44 : x
  2. Step 2: Convert to fraction form
    39,427.08/59,142 = 12,772.44/x
  3. Step 3: Cross multiply
    39,427.08x = 59,142 × 12,772.44
  4. Step 4: Simplify right side
    39,427.08x = 755,387,646.48
  5. Step 5: Solve for x
    x = 755,387,646.48/39,427.08
  6. Step 6: Final answer
    x = 19,159.11

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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.