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Finding the Fourth Proportional to 25,692, 38,545.78 and 18,210.04

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Solution

The fourth proportional to 25,692, 38,545.78 and 18,210.04 is: 27,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,692 : 38,545.78 = 18,210.04 : x
  2. Step 2: Convert to fraction form
    25,692/38,545.78 = 18,210.04/x
  3. Step 3: Cross multiply
    25,692x = 38,545.78 × 18,210.04
  4. Step 4: Simplify right side
    25,692x = 701,920,195.63
  5. Step 5: Solve for x
    x = 701,920,195.63/25,692
  6. Step 6: Final answer
    x = 27,320.57

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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.