Home / 20,205.09-30,314.93-10,349.01

Finding the Fourth Proportional to 20,205.09, 30,314.93 and 10,349.01

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Solution

The fourth proportional to 20,205.09, 30,314.93 and 10,349.01 is: 15,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.09 : 30,314.93 = 10,349.01 : x
  2. Step 2: Convert to fraction form
    20,205.09/30,314.93 = 10,349.01/x
  3. Step 3: Cross multiply
    20,205.09x = 30,314.93 × 10,349.01
  4. Step 4: Simplify right side
    20,205.09x = 313,729,461.97
  5. Step 5: Solve for x
    x = 313,729,461.97/20,205.09
  6. Step 6: Final answer
    x = 15,527.25

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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.