Home / 21,367.44-29,488.56-12,417.60

Finding the Fourth Proportional to 21,367.44, 29,488.56 and 12,417.60

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Solution

The fourth proportional to 21,367.44, 29,488.56 and 12,417.60 is: 17,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.44 : 29,488.56 = 12,417.60 : x
  2. Step 2: Convert to fraction form
    21,367.44/29,488.56 = 12,417.60/x
  3. Step 3: Cross multiply
    21,367.44x = 29,488.56 × 12,417.60
  4. Step 4: Simplify right side
    21,367.44x = 366,177,142.66
  5. Step 5: Solve for x
    x = 366,177,142.66/21,367.44
  6. Step 6: Final answer
    x = 17,137.16

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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.