Home / 19,930.60-29,838.30-12,154.60

Finding the Fourth Proportional to 19,930.60, 29,838.30 and 12,154.60

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Solution

The fourth proportional to 19,930.60, 29,838.30 and 12,154.60 is: 18,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.60 : 29,838.30 = 12,154.60 : x
  2. Step 2: Convert to fraction form
    19,930.60/29,838.30 = 12,154.60/x
  3. Step 3: Cross multiply
    19,930.60x = 29,838.30 × 12,154.60
  4. Step 4: Simplify right side
    19,930.60x = 362,672,601.18
  5. Step 5: Solve for x
    x = 362,672,601.18/19,930.60
  6. Step 6: Final answer
    x = 18,196.77

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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.