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Finding the Fourth Proportional to 20,017.68, 29,968.19 and 19,259.52

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Solution

The fourth proportional to 20,017.68, 29,968.19 and 19,259.52 is: 28,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.68 : 29,968.19 = 19,259.52 : x
  2. Step 2: Convert to fraction form
    20,017.68/29,968.19 = 19,259.52/x
  3. Step 3: Cross multiply
    20,017.68x = 29,968.19 × 19,259.52
  4. Step 4: Simplify right side
    20,017.68x = 577,172,858.37
  5. Step 5: Solve for x
    x = 577,172,858.37/20,017.68
  6. Step 6: Final answer
    x = 28,833.15

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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.