Home / 22,258.63-30,720.35-12,698.54

Finding the Fourth Proportional to 22,258.63, 30,720.35 and 12,698.54

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Solution

The fourth proportional to 22,258.63, 30,720.35 and 12,698.54 is: 17,525.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.63 : 30,720.35 = 12,698.54 : x
  2. Step 2: Convert to fraction form
    22,258.63/30,720.35 = 12,698.54/x
  3. Step 3: Cross multiply
    22,258.63x = 30,720.35 × 12,698.54
  4. Step 4: Simplify right side
    22,258.63x = 390,103,471.43
  5. Step 5: Solve for x
    x = 390,103,471.43/22,258.63
  6. Step 6: Final answer
    x = 17,525.94

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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.