Home / 28,702.36-39,606.96-15,954.54

Finding the Fourth Proportional to 28,702.36, 39,606.96 and 15,954.54

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Solution

The fourth proportional to 28,702.36, 39,606.96 and 15,954.54 is: 22,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.36 : 39,606.96 = 15,954.54 : x
  2. Step 2: Convert to fraction form
    28,702.36/39,606.96 = 15,954.54/x
  3. Step 3: Cross multiply
    28,702.36x = 39,606.96 × 15,954.54
  4. Step 4: Simplify right side
    28,702.36x = 631,910,827.60
  5. Step 5: Solve for x
    x = 631,910,827.60/28,702.36
  6. Step 6: Final answer
    x = 22,015.99

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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.