Home / 20,014.71-30,021.56-6,505.81

Finding the Fourth Proportional to 20,014.71, 30,021.56 and 6,505.81

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Solution

The fourth proportional to 20,014.71, 30,021.56 and 6,505.81 is: 9,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.71 : 30,021.56 = 6,505.81 : x
  2. Step 2: Convert to fraction form
    20,014.71/30,021.56 = 6,505.81/x
  3. Step 3: Cross multiply
    20,014.71x = 30,021.56 × 6,505.81
  4. Step 4: Simplify right side
    20,014.71x = 195,314,570.26
  5. Step 5: Solve for x
    x = 195,314,570.26/20,014.71
  6. Step 6: Final answer
    x = 9,758.55

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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.