Home / 20,848.23-31,264.04-12,089.30

Finding the Fourth Proportional to 20,848.23, 31,264.04 and 12,089.30

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Solution

The fourth proportional to 20,848.23, 31,264.04 and 12,089.30 is: 18,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.23 : 31,264.04 = 12,089.30 : x
  2. Step 2: Convert to fraction form
    20,848.23/31,264.04 = 12,089.30/x
  3. Step 3: Cross multiply
    20,848.23x = 31,264.04 × 12,089.30
  4. Step 4: Simplify right side
    20,848.23x = 377,960,232.68
  5. Step 5: Solve for x
    x = 377,960,232.68/20,848.23
  6. Step 6: Final answer
    x = 18,129.13

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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.