Home / 20,646.84-30,970.40-5,064.46

Finding the Fourth Proportional to 20,646.84, 30,970.40 and 5,064.46

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Solution

The fourth proportional to 20,646.84, 30,970.40 and 5,064.46 is: 7,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.84 : 30,970.40 = 5,064.46 : x
  2. Step 2: Convert to fraction form
    20,646.84/30,970.40 = 5,064.46/x
  3. Step 3: Cross multiply
    20,646.84x = 30,970.40 × 5,064.46
  4. Step 4: Simplify right side
    20,646.84x = 156,848,351.98
  5. Step 5: Solve for x
    x = 156,848,351.98/20,646.84
  6. Step 6: Final answer
    x = 7,596.72

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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.