Home / 21,068.25-29,074.29-12,116.28

Finding the Fourth Proportional to 21,068.25, 29,074.29 and 12,116.28

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Solution

The fourth proportional to 21,068.25, 29,074.29 and 12,116.28 is: 16,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.25 : 29,074.29 = 12,116.28 : x
  2. Step 2: Convert to fraction form
    21,068.25/29,074.29 = 12,116.28/x
  3. Step 3: Cross multiply
    21,068.25x = 29,074.29 × 12,116.28
  4. Step 4: Simplify right side
    21,068.25x = 352,272,238.44
  5. Step 5: Solve for x
    x = 352,272,238.44/21,068.25
  6. Step 6: Final answer
    x = 16,720.53

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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.