Home / 30,485.84-45,719.24-18,002.52

Finding the Fourth Proportional to 30,485.84, 45,719.24 and 18,002.52

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Solution

The fourth proportional to 30,485.84, 45,719.24 and 18,002.52 is: 26,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.84 : 45,719.24 = 18,002.52 : x
  2. Step 2: Convert to fraction form
    30,485.84/45,719.24 = 18,002.52/x
  3. Step 3: Cross multiply
    30,485.84x = 45,719.24 × 18,002.52
  4. Step 4: Simplify right side
    30,485.84x = 823,061,442.47
  5. Step 5: Solve for x
    x = 823,061,442.47/30,485.84
  6. Step 6: Final answer
    x = 26,998.16

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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.