Home / 20,525.56-30,792.51-6,487.78

Finding the Fourth Proportional to 20,525.56, 30,792.51 and 6,487.78

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Solution

The fourth proportional to 20,525.56, 30,792.51 and 6,487.78 is: 9,732.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.56 : 30,792.51 = 6,487.78 : x
  2. Step 2: Convert to fraction form
    20,525.56/30,792.51 = 6,487.78/x
  3. Step 3: Cross multiply
    20,525.56x = 30,792.51 × 6,487.78
  4. Step 4: Simplify right side
    20,525.56x = 199,774,929.22
  5. Step 5: Solve for x
    x = 199,774,929.22/20,525.56
  6. Step 6: Final answer
    x = 9,732.98

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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.