Home / 43,315.79-64,975.98-13,731.35

Finding the Fourth Proportional to 43,315.79, 64,975.98 and 13,731.35

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Solution

The fourth proportional to 43,315.79, 64,975.98 and 13,731.35 is: 20,597.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315.79 : 64,975.98 = 13,731.35 : x
  2. Step 2: Convert to fraction form
    43,315.79/64,975.98 = 13,731.35/x
  3. Step 3: Cross multiply
    43,315.79x = 64,975.98 × 13,731.35
  4. Step 4: Simplify right side
    43,315.79x = 892,207,922.97
  5. Step 5: Solve for x
    x = 892,207,922.97/43,315.79
  6. Step 6: Final answer
    x = 20,597.75

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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.