Home / 20,903.93-31,360.67-9,059.69

Finding the Fourth Proportional to 20,903.93, 31,360.67 and 9,059.69

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Solution

The fourth proportional to 20,903.93, 31,360.67 and 9,059.69 is: 13,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.93 : 31,360.67 = 9,059.69 : x
  2. Step 2: Convert to fraction form
    20,903.93/31,360.67 = 9,059.69/x
  3. Step 3: Cross multiply
    20,903.93x = 31,360.67 × 9,059.69
  4. Step 4: Simplify right side
    20,903.93x = 284,117,890.03
  5. Step 5: Solve for x
    x = 284,117,890.03/20,903.93
  6. Step 6: Final answer
    x = 13,591.60

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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.