Home / 30,623.64-45,877.02-20,745.96

Finding the Fourth Proportional to 30,623.64, 45,877.02 and 20,745.96

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Solution

The fourth proportional to 30,623.64, 45,877.02 and 20,745.96 is: 31,079.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,623.64 : 45,877.02 = 20,745.96 : x
  2. Step 2: Convert to fraction form
    30,623.64/45,877.02 = 20,745.96/x
  3. Step 3: Cross multiply
    30,623.64x = 45,877.02 × 20,745.96
  4. Step 4: Simplify right side
    30,623.64x = 951,762,821.84
  5. Step 5: Solve for x
    x = 951,762,821.84/30,623.64
  6. Step 6: Final answer
    x = 31,079.35

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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.