Home / 28,620.08-39,497.73-15,877.34

Finding the Fourth Proportional to 28,620.08, 39,497.73 and 15,877.34

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Solution

The fourth proportional to 28,620.08, 39,497.73 and 15,877.34 is: 21,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.08 : 39,497.73 = 15,877.34 : x
  2. Step 2: Convert to fraction form
    28,620.08/39,497.73 = 15,877.34/x
  3. Step 3: Cross multiply
    28,620.08x = 39,497.73 × 15,877.34
  4. Step 4: Simplify right side
    28,620.08x = 627,118,888.44
  5. Step 5: Solve for x
    x = 627,118,888.44/28,620.08
  6. Step 6: Final answer
    x = 21,911.85

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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.