Home / 28,258.32-38,993.76-15,682.26

Finding the Fourth Proportional to 28,258.32, 38,993.76 and 15,682.26

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Solution

The fourth proportional to 28,258.32, 38,993.76 and 15,682.26 is: 21,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.32 : 38,993.76 = 15,682.26 : x
  2. Step 2: Convert to fraction form
    28,258.32/38,993.76 = 15,682.26/x
  3. Step 3: Cross multiply
    28,258.32x = 38,993.76 × 15,682.26
  4. Step 4: Simplify right side
    28,258.32x = 611,510,282.70
  5. Step 5: Solve for x
    x = 611,510,282.70/28,258.32
  6. Step 6: Final answer
    x = 21,640.01

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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.