Home / 19,925.47-29,921.53-12,446.43

Finding the Fourth Proportional to 19,925.47, 29,921.53 and 12,446.43

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Solution

The fourth proportional to 19,925.47, 29,921.53 and 12,446.43 is: 18,690.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,925.47 : 29,921.53 = 12,446.43 : x
  2. Step 2: Convert to fraction form
    19,925.47/29,921.53 = 12,446.43/x
  3. Step 3: Cross multiply
    19,925.47x = 29,921.53 × 12,446.43
  4. Step 4: Simplify right side
    19,925.47x = 372,416,228.64
  5. Step 5: Solve for x
    x = 372,416,228.64/19,925.47
  6. Step 6: Final answer
    x = 18,690.46

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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.