Home / 20,549.41-30,821.51-6,510.86

Finding the Fourth Proportional to 20,549.41, 30,821.51 and 6,510.86

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Solution

The fourth proportional to 20,549.41, 30,821.51 and 6,510.86 is: 9,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.41 : 30,821.51 = 6,510.86 : x
  2. Step 2: Convert to fraction form
    20,549.41/30,821.51 = 6,510.86/x
  3. Step 3: Cross multiply
    20,549.41x = 30,821.51 × 6,510.86
  4. Step 4: Simplify right side
    20,549.41x = 200,674,522.49
  5. Step 5: Solve for x
    x = 200,674,522.49/20,549.41
  6. Step 6: Final answer
    x = 9,765.47

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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.