Home / 28,719.30-43,061.31-11,168.67

Finding the Fourth Proportional to 28,719.30, 43,061.31 and 11,168.67

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Solution

The fourth proportional to 28,719.30, 43,061.31 and 11,168.67 is: 16,746.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.30 : 43,061.31 = 11,168.67 : x
  2. Step 2: Convert to fraction form
    28,719.30/43,061.31 = 11,168.67/x
  3. Step 3: Cross multiply
    28,719.30x = 43,061.31 × 11,168.67
  4. Step 4: Simplify right side
    28,719.30x = 480,937,561.16
  5. Step 5: Solve for x
    x = 480,937,561.16/28,719.30
  6. Step 6: Final answer
    x = 16,746.14

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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.