Home / 21,349.07-29,396.49-19,346.60

Finding the Fourth Proportional to 21,349.07, 29,396.49 and 19,346.60

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Solution

The fourth proportional to 21,349.07, 29,396.49 and 19,346.60 is: 26,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.07 : 29,396.49 = 19,346.60 : x
  2. Step 2: Convert to fraction form
    21,349.07/29,396.49 = 19,346.60/x
  3. Step 3: Cross multiply
    21,349.07x = 29,396.49 × 19,346.60
  4. Step 4: Simplify right side
    21,349.07x = 568,721,986.45
  5. Step 5: Solve for x
    x = 568,721,986.45/21,349.07
  6. Step 6: Final answer
    x = 26,639.20

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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.