Home / 20,258.28-30,376.02-13,940.58

Finding the Fourth Proportional to 20,258.28, 30,376.02 and 13,940.58

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Solution

The fourth proportional to 20,258.28, 30,376.02 and 13,940.58 is: 20,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.28 : 30,376.02 = 13,940.58 : x
  2. Step 2: Convert to fraction form
    20,258.28/30,376.02 = 13,940.58/x
  3. Step 3: Cross multiply
    20,258.28x = 30,376.02 × 13,940.58
  4. Step 4: Simplify right side
    20,258.28x = 423,459,336.89
  5. Step 5: Solve for x
    x = 423,459,336.89/20,258.28
  6. Step 6: Final answer
    x = 20,903.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.