Home / 28,015.26-38,644.47-19,669.02

Finding the Fourth Proportional to 28,015.26, 38,644.47 and 19,669.02

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Solution

The fourth proportional to 28,015.26, 38,644.47 and 19,669.02 is: 27,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.26 : 38,644.47 = 19,669.02 : x
  2. Step 2: Convert to fraction form
    28,015.26/38,644.47 = 19,669.02/x
  3. Step 3: Cross multiply
    28,015.26x = 38,644.47 × 19,669.02
  4. Step 4: Simplify right side
    28,015.26x = 760,098,853.32
  5. Step 5: Solve for x
    x = 760,098,853.32/28,015.26
  6. Step 6: Final answer
    x = 27,131.60

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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.