Home / 21,345.56-29,458.02-11,914.04

Finding the Fourth Proportional to 21,345.56, 29,458.02 and 11,914.04

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Solution

The fourth proportional to 21,345.56, 29,458.02 and 11,914.04 is: 16,442.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345.56 : 29,458.02 = 11,914.04 : x
  2. Step 2: Convert to fraction form
    21,345.56/29,458.02 = 11,914.04/x
  3. Step 3: Cross multiply
    21,345.56x = 29,458.02 × 11,914.04
  4. Step 4: Simplify right side
    21,345.56x = 350,964,028.60
  5. Step 5: Solve for x
    x = 350,964,028.60/21,345.56
  6. Step 6: Final answer
    x = 16,442.02

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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.