Home / 19,928.72-29,877.57-12,893.87

Finding the Fourth Proportional to 19,928.72, 29,877.57 and 12,893.87

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Solution

The fourth proportional to 19,928.72, 29,877.57 and 12,893.87 is: 19,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.72 : 29,877.57 = 12,893.87 : x
  2. Step 2: Convert to fraction form
    19,928.72/29,877.57 = 12,893.87/x
  3. Step 3: Cross multiply
    19,928.72x = 29,877.57 × 12,893.87
  4. Step 4: Simplify right side
    19,928.72x = 385,237,354.11
  5. Step 5: Solve for x
    x = 385,237,354.11/19,928.72
  6. Step 6: Final answer
    x = 19,330.77

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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.