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Finding the Fourth Proportional to 40,295.69, 60,450.83 and 13,279.47

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Solution

The fourth proportional to 40,295.69, 60,450.83 and 13,279.47 is: 19,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,295.69 : 60,450.83 = 13,279.47 : x
  2. Step 2: Convert to fraction form
    40,295.69/60,450.83 = 13,279.47/x
  3. Step 3: Cross multiply
    40,295.69x = 60,450.83 × 13,279.47
  4. Step 4: Simplify right side
    40,295.69x = 802,754,740.17
  5. Step 5: Solve for x
    x = 802,754,740.17/40,295.69
  6. Step 6: Final answer
    x = 19,921.60

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1.5x scale

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.