Home / 15,724.12-23,679.80-14,181.88

Finding the Fourth Proportional to 15,724.12, 23,679.80 and 14,181.88

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Solution

The fourth proportional to 15,724.12, 23,679.80 and 14,181.88 is: 21,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724.12 : 23,679.80 = 14,181.88 : x
  2. Step 2: Convert to fraction form
    15,724.12/23,679.80 = 14,181.88/x
  3. Step 3: Cross multiply
    15,724.12x = 23,679.80 × 14,181.88
  4. Step 4: Simplify right side
    15,724.12x = 335,824,082.02
  5. Step 5: Solve for x
    x = 335,824,082.02/15,724.12
  6. Step 6: Final answer
    x = 21,357.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.