Home / 20,868.46-31,302.75-6,077.74

Finding the Fourth Proportional to 20,868.46, 31,302.75 and 6,077.74

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Solution

The fourth proportional to 20,868.46, 31,302.75 and 6,077.74 is: 9,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.46 : 31,302.75 = 6,077.74 : x
  2. Step 2: Convert to fraction form
    20,868.46/31,302.75 = 6,077.74/x
  3. Step 3: Cross multiply
    20,868.46x = 31,302.75 × 6,077.74
  4. Step 4: Simplify right side
    20,868.46x = 190,249,975.79
  5. Step 5: Solve for x
    x = 190,249,975.79/20,868.46
  6. Step 6: Final answer
    x = 9,116.63

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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.