Home / 19,302.32-28,948.26-6,820.70

Finding the Fourth Proportional to 19,302.32, 28,948.26 and 6,820.70

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Solution

The fourth proportional to 19,302.32, 28,948.26 and 6,820.70 is: 10,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.32 : 28,948.26 = 6,820.70 : x
  2. Step 2: Convert to fraction form
    19,302.32/28,948.26 = 6,820.70/x
  3. Step 3: Cross multiply
    19,302.32x = 28,948.26 × 6,820.70
  4. Step 4: Simplify right side
    19,302.32x = 197,447,252.24
  5. Step 5: Solve for x
    x = 197,447,252.24/19,302.32
  6. Step 6: Final answer
    x = 10,229.20

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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.