Home / 19,961.57-29,893.15-12,547.64

Finding the Fourth Proportional to 19,961.57, 29,893.15 and 12,547.64

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Solution

The fourth proportional to 19,961.57, 29,893.15 and 12,547.64 is: 18,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.57 : 29,893.15 = 12,547.64 : x
  2. Step 2: Convert to fraction form
    19,961.57/29,893.15 = 12,547.64/x
  3. Step 3: Cross multiply
    19,961.57x = 29,893.15 × 12,547.64
  4. Step 4: Simplify right side
    19,961.57x = 375,088,575.08
  5. Step 5: Solve for x
    x = 375,088,575.08/19,961.57
  6. Step 6: Final answer
    x = 18,790.53

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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.