Home / 21,045.33-29,081.06-20,020.28

Finding the Fourth Proportional to 21,045.33, 29,081.06 and 20,020.28

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Solution

The fourth proportional to 21,045.33, 29,081.06 and 20,020.28 is: 27,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.33 : 29,081.06 = 20,020.28 : x
  2. Step 2: Convert to fraction form
    21,045.33/29,081.06 = 20,020.28/x
  3. Step 3: Cross multiply
    21,045.33x = 29,081.06 × 20,020.28
  4. Step 4: Simplify right side
    21,045.33x = 582,210,718.39
  5. Step 5: Solve for x
    x = 582,210,718.39/21,045.33
  6. Step 6: Final answer
    x = 27,664.60

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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.