Home / 20,295.06-30,428.28-7,804.59

Finding the Fourth Proportional to 20,295.06, 30,428.28 and 7,804.59

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Solution

The fourth proportional to 20,295.06, 30,428.28 and 7,804.59 is: 11,701.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.06 : 30,428.28 = 7,804.59 : x
  2. Step 2: Convert to fraction form
    20,295.06/30,428.28 = 7,804.59/x
  3. Step 3: Cross multiply
    20,295.06x = 30,428.28 × 7,804.59
  4. Step 4: Simplify right side
    20,295.06x = 237,480,249.81
  5. Step 5: Solve for x
    x = 237,480,249.81/20,295.06
  6. Step 6: Final answer
    x = 11,701.38

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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.