Home / 28,875.25-39,847.97-15,627.25

Finding the Fourth Proportional to 28,875.25, 39,847.97 and 15,627.25

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Solution

The fourth proportional to 28,875.25, 39,847.97 and 15,627.25 is: 21,565.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.25 : 39,847.97 = 15,627.25 : x
  2. Step 2: Convert to fraction form
    28,875.25/39,847.97 = 15,627.25/x
  3. Step 3: Cross multiply
    28,875.25x = 39,847.97 × 15,627.25
  4. Step 4: Simplify right side
    28,875.25x = 622,714,111.05
  5. Step 5: Solve for x
    x = 622,714,111.05/28,875.25
  6. Step 6: Final answer
    x = 21,565.67

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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.