Home / 20,407.70-30,607.43-6,365.45

Finding the Fourth Proportional to 20,407.70, 30,607.43 and 6,365.45

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Solution

The fourth proportional to 20,407.70, 30,607.43 and 6,365.45 is: 9,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407.70 : 30,607.43 = 6,365.45 : x
  2. Step 2: Convert to fraction form
    20,407.70/30,607.43 = 6,365.45/x
  3. Step 3: Cross multiply
    20,407.70x = 30,607.43 × 6,365.45
  4. Step 4: Simplify right side
    20,407.70x = 194,829,880.43
  5. Step 5: Solve for x
    x = 194,829,880.43/20,407.70
  6. Step 6: Final answer
    x = 9,546.88

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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.