Home / 28,335.96-39,104.46-15,588.54

Finding the Fourth Proportional to 28,335.96, 39,104.46 and 15,588.54

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Solution

The fourth proportional to 28,335.96, 39,104.46 and 15,588.54 is: 21,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.96 : 39,104.46 = 15,588.54 : x
  2. Step 2: Convert to fraction form
    28,335.96/39,104.46 = 15,588.54/x
  3. Step 3: Cross multiply
    28,335.96x = 39,104.46 × 15,588.54
  4. Step 4: Simplify right side
    28,335.96x = 609,581,438.89
  5. Step 5: Solve for x
    x = 609,581,438.89/28,335.96
  6. Step 6: Final answer
    x = 21,512.64

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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.