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Finding the Fourth Proportional to 19,323.15, 29,014.15 and 18,371.68

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Solution

The fourth proportional to 19,323.15, 29,014.15 and 18,371.68 is: 27,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.15 : 29,014.15 = 18,371.68 : x
  2. Step 2: Convert to fraction form
    19,323.15/29,014.15 = 18,371.68/x
  3. Step 3: Cross multiply
    19,323.15x = 29,014.15 × 18,371.68
  4. Step 4: Simplify right side
    19,323.15x = 533,038,679.27
  5. Step 5: Solve for x
    x = 533,038,679.27/19,323.15
  6. Step 6: Final answer
    x = 27,585.50

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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.