Home / 19,431.08-29,097.18-12,847.40

Finding the Fourth Proportional to 19,431.08, 29,097.18 and 12,847.40

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Solution

The fourth proportional to 19,431.08, 29,097.18 and 12,847.40 is: 19,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.08 : 29,097.18 = 12,847.40 : x
  2. Step 2: Convert to fraction form
    19,431.08/29,097.18 = 12,847.40/x
  3. Step 3: Cross multiply
    19,431.08x = 29,097.18 × 12,847.40
  4. Step 4: Simplify right side
    19,431.08x = 373,823,110.33
  5. Step 5: Solve for x
    x = 373,823,110.33/19,431.08
  6. Step 6: Final answer
    x = 19,238.41

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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.