Home / 21,074.77-29,084.01-12,122.26

Finding the Fourth Proportional to 21,074.77, 29,084.01 and 12,122.26

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Solution

The fourth proportional to 21,074.77, 29,084.01 and 12,122.26 is: 16,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.77 : 29,084.01 = 12,122.26 : x
  2. Step 2: Convert to fraction form
    21,074.77/29,084.01 = 12,122.26/x
  3. Step 3: Cross multiply
    21,074.77x = 29,084.01 × 12,122.26
  4. Step 4: Simplify right side
    21,074.77x = 352,563,881.08
  5. Step 5: Solve for x
    x = 352,563,881.08/21,074.77
  6. Step 6: Final answer
    x = 16,729.20

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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.