Home / 19,306.10-28,904.54-12,268.67

Finding the Fourth Proportional to 19,306.10, 28,904.54 and 12,268.67

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Solution

The fourth proportional to 19,306.10, 28,904.54 and 12,268.67 is: 18,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,306.10 : 28,904.54 = 12,268.67 : x
  2. Step 2: Convert to fraction form
    19,306.10/28,904.54 = 12,268.67/x
  3. Step 3: Cross multiply
    19,306.10x = 28,904.54 × 12,268.67
  4. Step 4: Simplify right side
    19,306.10x = 354,620,056.90
  5. Step 5: Solve for x
    x = 354,620,056.90/19,306.10
  6. Step 6: Final answer
    x = 18,368.30

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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.