Home / 28,194.59-38,905.40-15,616.19

Finding the Fourth Proportional to 28,194.59, 38,905.40 and 15,616.19

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Solution

The fourth proportional to 28,194.59, 38,905.40 and 15,616.19 is: 21,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.59 : 38,905.40 = 15,616.19 : x
  2. Step 2: Convert to fraction form
    28,194.59/38,905.40 = 15,616.19/x
  3. Step 3: Cross multiply
    28,194.59x = 38,905.40 × 15,616.19
  4. Step 4: Simplify right side
    28,194.59x = 607,554,040.35
  5. Step 5: Solve for x
    x = 607,554,040.35/28,194.59
  6. Step 6: Final answer
    x = 21,548.60

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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.