Home / 20,256.72-30,384.83-6,929.58

Finding the Fourth Proportional to 20,256.72, 30,384.83 and 6,929.58

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Solution

The fourth proportional to 20,256.72, 30,384.83 and 6,929.58 is: 10,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.72 : 30,384.83 = 6,929.58 : x
  2. Step 2: Convert to fraction form
    20,256.72/30,384.83 = 6,929.58/x
  3. Step 3: Cross multiply
    20,256.72x = 30,384.83 × 6,929.58
  4. Step 4: Simplify right side
    20,256.72x = 210,554,075.62
  5. Step 5: Solve for x
    x = 210,554,075.62/20,256.72
  6. Step 6: Final answer
    x = 10,394.28

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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.