Home / 28,708.55-39,617.77-15,961.34

Finding the Fourth Proportional to 28,708.55, 39,617.77 and 15,961.34

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Solution

The fourth proportional to 28,708.55, 39,617.77 and 15,961.34 is: 22,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.55 : 39,617.77 = 15,961.34 : x
  2. Step 2: Convert to fraction form
    28,708.55/39,617.77 = 15,961.34/x
  3. Step 3: Cross multiply
    28,708.55x = 39,617.77 × 15,961.34
  4. Step 4: Simplify right side
    28,708.55x = 632,352,563.23
  5. Step 5: Solve for x
    x = 632,352,563.23/28,708.55
  6. Step 6: Final answer
    x = 22,026.63

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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.