Home / 15,342.92-21,157.64-14,449.98

Finding the Fourth Proportional to 15,342.92, 21,157.64 and 14,449.98

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Solution

The fourth proportional to 15,342.92, 21,157.64 and 14,449.98 is: 19,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.92 : 21,157.64 = 14,449.98 : x
  2. Step 2: Convert to fraction form
    15,342.92/21,157.64 = 14,449.98/x
  3. Step 3: Cross multiply
    15,342.92x = 21,157.64 × 14,449.98
  4. Step 4: Simplify right side
    15,342.92x = 305,727,474.85
  5. Step 5: Solve for x
    x = 305,727,474.85/15,342.92
  6. Step 6: Final answer
    x = 19,926.29

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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.