Home / 28,397.64-39,144.96-18,323.40

Finding the Fourth Proportional to 28,397.64, 39,144.96 and 18,323.40

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Solution

The fourth proportional to 28,397.64, 39,144.96 and 18,323.40 is: 25,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,397.64 : 39,144.96 = 18,323.40 : x
  2. Step 2: Convert to fraction form
    28,397.64/39,144.96 = 18,323.40/x
  3. Step 3: Cross multiply
    28,397.64x = 39,144.96 × 18,323.40
  4. Step 4: Simplify right side
    28,397.64x = 717,268,760.06
  5. Step 5: Solve for x
    x = 717,268,760.06/28,397.64
  6. Step 6: Final answer
    x = 25,258.04

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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.