Home / 21,368.28-32,194.95-19,290.64

Finding the Fourth Proportional to 21,368.28, 32,194.95 and 19,290.64

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Solution

The fourth proportional to 21,368.28, 32,194.95 and 19,290.64 is: 29,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.28 : 32,194.95 = 19,290.64 : x
  2. Step 2: Convert to fraction form
    21,368.28/32,194.95 = 19,290.64/x
  3. Step 3: Cross multiply
    21,368.28x = 32,194.95 × 19,290.64
  4. Step 4: Simplify right side
    21,368.28x = 621,061,190.27
  5. Step 5: Solve for x
    x = 621,061,190.27/21,368.28
  6. Step 6: Final answer
    x = 29,064.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.