Home / 20,549.16-30,823.74-4,966.78

Finding the Fourth Proportional to 20,549.16, 30,823.74 and 4,966.78

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Solution

The fourth proportional to 20,549.16, 30,823.74 and 4,966.78 is: 7,450.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.16 : 30,823.74 = 4,966.78 : x
  2. Step 2: Convert to fraction form
    20,549.16/30,823.74 = 4,966.78/x
  3. Step 3: Cross multiply
    20,549.16x = 30,823.74 × 4,966.78
  4. Step 4: Simplify right side
    20,549.16x = 153,094,735.36
  5. Step 5: Solve for x
    x = 153,094,735.36/20,549.16
  6. Step 6: Final answer
    x = 7,450.17

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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.