Home / 35,981.84-53,972.38-12,289.11

Finding the Fourth Proportional to 35,981.84, 53,972.38 and 12,289.11

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Solution

The fourth proportional to 35,981.84, 53,972.38 and 12,289.11 is: 18,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,981.84 : 53,972.38 = 12,289.11 : x
  2. Step 2: Convert to fraction form
    35,981.84/53,972.38 = 12,289.11/x
  3. Step 3: Cross multiply
    35,981.84x = 53,972.38 × 12,289.11
  4. Step 4: Simplify right side
    35,981.84x = 663,272,514.78
  5. Step 5: Solve for x
    x = 663,272,514.78/35,981.84
  6. Step 6: Final answer
    x = 18,433.54

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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.