Home / 28,201.34-38,919.40-15,625.82

Finding the Fourth Proportional to 28,201.34, 38,919.40 and 15,625.82

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Solution

The fourth proportional to 28,201.34, 38,919.40 and 15,625.82 is: 21,564.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.34 : 38,919.40 = 15,625.82 : x
  2. Step 2: Convert to fraction form
    28,201.34/38,919.40 = 15,625.82/x
  3. Step 3: Cross multiply
    28,201.34x = 38,919.40 × 15,625.82
  4. Step 4: Simplify right side
    28,201.34x = 608,147,305.25
  5. Step 5: Solve for x
    x = 608,147,305.25/28,201.34
  6. Step 6: Final answer
    x = 21,564.49

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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.