Home / 14,158.10-21,251.90-13,840.43

Finding the Fourth Proportional to 14,158.10, 21,251.90 and 13,840.43

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Solution

The fourth proportional to 14,158.10, 21,251.90 and 13,840.43 is: 20,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.10 : 21,251.90 = 13,840.43 : x
  2. Step 2: Convert to fraction form
    14,158.10/21,251.90 = 13,840.43/x
  3. Step 3: Cross multiply
    14,158.10x = 21,251.90 × 13,840.43
  4. Step 4: Simplify right side
    14,158.10x = 294,135,258.86
  5. Step 5: Solve for x
    x = 294,135,258.86/14,158.10
  6. Step 6: Final answer
    x = 20,775.06

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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.