Home / 21,068.90-29,074.58-12,116.21

Finding the Fourth Proportional to 21,068.90, 29,074.58 and 12,116.21

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Solution

The fourth proportional to 21,068.90, 29,074.58 and 12,116.21 is: 16,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.90 : 29,074.58 = 12,116.21 : x
  2. Step 2: Convert to fraction form
    21,068.90/29,074.58 = 12,116.21/x
  3. Step 3: Cross multiply
    21,068.90x = 29,074.58 × 12,116.21
  4. Step 4: Simplify right side
    21,068.90x = 352,273,620.02
  5. Step 5: Solve for x
    x = 352,273,620.02/21,068.90
  6. Step 6: Final answer
    x = 16,720.07

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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.