Home / 19,971.20-29,924.40-12,562.40

Finding the Fourth Proportional to 19,971.20, 29,924.40 and 12,562.40

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Solution

The fourth proportional to 19,971.20, 29,924.40 and 12,562.40 is: 18,823.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.20 : 29,924.40 = 12,562.40 : x
  2. Step 2: Convert to fraction form
    19,971.20/29,924.40 = 12,562.40/x
  3. Step 3: Cross multiply
    19,971.20x = 29,924.40 × 12,562.40
  4. Step 4: Simplify right side
    19,971.20x = 375,922,282.56
  5. Step 5: Solve for x
    x = 375,922,282.56/19,971.20
  6. Step 6: Final answer
    x = 18,823.22

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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.