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Finding the Fourth Proportional to 43,392.98, 65,071.69 and 13,802.87

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Solution

The fourth proportional to 43,392.98, 65,071.69 and 13,802.87 is: 20,698.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,392.98 : 65,071.69 = 13,802.87 : x
  2. Step 2: Convert to fraction form
    43,392.98/65,071.69 = 13,802.87/x
  3. Step 3: Cross multiply
    43,392.98x = 65,071.69 × 13,802.87
  4. Step 4: Simplify right side
    43,392.98x = 898,176,205.92
  5. Step 5: Solve for x
    x = 898,176,205.92/43,392.98
  6. Step 6: Final answer
    x = 20,698.65

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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.