Home / 34,728.81-52,105.71-13,657.17

Finding the Fourth Proportional to 34,728.81, 52,105.71 and 13,657.17

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Solution

The fourth proportional to 34,728.81, 52,105.71 and 13,657.17 is: 20,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,728.81 : 52,105.71 = 13,657.17 : x
  2. Step 2: Convert to fraction form
    34,728.81/52,105.71 = 13,657.17/x
  3. Step 3: Cross multiply
    34,728.81x = 52,105.71 × 13,657.17
  4. Step 4: Simplify right side
    34,728.81x = 711,616,539.44
  5. Step 5: Solve for x
    x = 711,616,539.44/34,728.81
  6. Step 6: Final answer
    x = 20,490.67

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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.