Home / 35,447.40-53,178.30-12,076.20

Finding the Fourth Proportional to 35,447.40, 53,178.30 and 12,076.20

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Solution

The fourth proportional to 35,447.40, 53,178.30 and 12,076.20 is: 18,116.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,447.40 : 53,178.30 = 12,076.20 : x
  2. Step 2: Convert to fraction form
    35,447.40/53,178.30 = 12,076.20/x
  3. Step 3: Cross multiply
    35,447.40x = 53,178.30 × 12,076.20
  4. Step 4: Simplify right side
    35,447.40x = 642,191,786.46
  5. Step 5: Solve for x
    x = 642,191,786.46/35,447.40
  6. Step 6: Final answer
    x = 18,116.75

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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.