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Finding the Fourth Proportional to 19,007.60, 28,511.40 and 17,932.40

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Solution

The fourth proportional to 19,007.60, 28,511.40 and 17,932.40 is: 26,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.60 : 28,511.40 = 17,932.40 : x
  2. Step 2: Convert to fraction form
    19,007.60/28,511.40 = 17,932.40/x
  3. Step 3: Cross multiply
    19,007.60x = 28,511.40 × 17,932.40
  4. Step 4: Simplify right side
    19,007.60x = 511,277,829.36
  5. Step 5: Solve for x
    x = 511,277,829.36/19,007.60
  6. Step 6: Final answer
    x = 26,898.60

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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.