Home / 21,442.66-29,583.98-13,894.80

Finding the Fourth Proportional to 21,442.66, 29,583.98 and 13,894.80

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Solution

The fourth proportional to 21,442.66, 29,583.98 and 13,894.80 is: 19,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.66 : 29,583.98 = 13,894.80 : x
  2. Step 2: Convert to fraction form
    21,442.66/29,583.98 = 13,894.80/x
  3. Step 3: Cross multiply
    21,442.66x = 29,583.98 × 13,894.80
  4. Step 4: Simplify right side
    21,442.66x = 411,063,485.30
  5. Step 5: Solve for x
    x = 411,063,485.30/21,442.66
  6. Step 6: Final answer
    x = 19,170.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.