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Finding the Fourth Proportional to 19,543.68, 29,322 and 12,995.64

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Solution

The fourth proportional to 19,543.68, 29,322 and 12,995.64 is: 19,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.68 : 29,322 = 12,995.64 : x
  2. Step 2: Convert to fraction form
    19,543.68/29,322 = 12,995.64/x
  3. Step 3: Cross multiply
    19,543.68x = 29,322 × 12,995.64
  4. Step 4: Simplify right side
    19,543.68x = 381,058,156.08
  5. Step 5: Solve for x
    x = 381,058,156.08/19,543.68
  6. Step 6: Final answer
    x = 19,497.77

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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.