Home / 35,817.84-53,652.92-20,981.78

Finding the Fourth Proportional to 35,817.84, 53,652.92 and 20,981.78

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Solution

The fourth proportional to 35,817.84, 53,652.92 and 20,981.78 is: 31,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,817.84 : 53,652.92 = 20,981.78 : x
  2. Step 2: Convert to fraction form
    35,817.84/53,652.92 = 20,981.78/x
  3. Step 3: Cross multiply
    35,817.84x = 53,652.92 × 20,981.78
  4. Step 4: Simplify right side
    35,817.84x = 1,125,733,763.80
  5. Step 5: Solve for x
    x = 1,125,733,763.80/35,817.84
  6. Step 6: Final answer
    x = 31,429.42

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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.