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Finding the Fourth Proportional to 19,238.78, 28,855.28 and 6,089.45

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Solution

The fourth proportional to 19,238.78, 28,855.28 and 6,089.45 is: 9,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.78 : 28,855.28 = 6,089.45 : x
  2. Step 2: Convert to fraction form
    19,238.78/28,855.28 = 6,089.45/x
  3. Step 3: Cross multiply
    19,238.78x = 28,855.28 × 6,089.45
  4. Step 4: Simplify right side
    19,238.78x = 175,712,610.07
  5. Step 5: Solve for x
    x = 175,712,610.07/19,238.78
  6. Step 6: Final answer
    x = 9,133.25

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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.