Home / 28,448.57-39,258.99-15,873.32

Finding the Fourth Proportional to 28,448.57, 39,258.99 and 15,873.32

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Solution

The fourth proportional to 28,448.57, 39,258.99 and 15,873.32 is: 21,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448.57 : 39,258.99 = 15,873.32 : x
  2. Step 2: Convert to fraction form
    28,448.57/39,258.99 = 15,873.32/x
  3. Step 3: Cross multiply
    28,448.57x = 39,258.99 × 15,873.32
  4. Step 4: Simplify right side
    28,448.57x = 623,170,314.85
  5. Step 5: Solve for x
    x = 623,170,314.85/28,448.57
  6. Step 6: Final answer
    x = 21,905.16

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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.