Home / 21,326.36-29,430.52-11,766.60

Finding the Fourth Proportional to 21,326.36, 29,430.52 and 11,766.60

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Solution

The fourth proportional to 21,326.36, 29,430.52 and 11,766.60 is: 16,237.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.36 : 29,430.52 = 11,766.60 : x
  2. Step 2: Convert to fraction form
    21,326.36/29,430.52 = 11,766.60/x
  3. Step 3: Cross multiply
    21,326.36x = 29,430.52 × 11,766.60
  4. Step 4: Simplify right side
    21,326.36x = 346,297,156.63
  5. Step 5: Solve for x
    x = 346,297,156.63/21,326.36
  6. Step 6: Final answer
    x = 16,237.99

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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.