Home / 21,300.98-29,382.35-14,131.26

Finding the Fourth Proportional to 21,300.98, 29,382.35 and 14,131.26

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Solution

The fourth proportional to 21,300.98, 29,382.35 and 14,131.26 is: 19,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300.98 : 29,382.35 = 14,131.26 : x
  2. Step 2: Convert to fraction form
    21,300.98/29,382.35 = 14,131.26/x
  3. Step 3: Cross multiply
    21,300.98x = 29,382.35 × 14,131.26
  4. Step 4: Simplify right side
    21,300.98x = 415,209,556.60
  5. Step 5: Solve for x
    x = 415,209,556.60/21,300.98
  6. Step 6: Final answer
    x = 19,492.51

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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.