Home / 30,475.30-45,731.11-13,607.00

Finding the Fourth Proportional to 30,475.30, 45,731.11 and 13,607.00

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Solution

The fourth proportional to 30,475.30, 45,731.11 and 13,607.00 is: 20,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,475.30 : 45,731.11 = 13,607.00 : x
  2. Step 2: Convert to fraction form
    30,475.30/45,731.11 = 13,607.00/x
  3. Step 3: Cross multiply
    30,475.30x = 45,731.11 × 13,607.00
  4. Step 4: Simplify right side
    30,475.30x = 622,262,985.11
  5. Step 5: Solve for x
    x = 622,262,985.11/30,475.30
  6. Step 6: Final answer
    x = 20,418.60

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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.