Home / 20,483.07-28,267.16-11,530.89

Finding the Fourth Proportional to 20,483.07, 28,267.16 and 11,530.89

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Solution

The fourth proportional to 20,483.07, 28,267.16 and 11,530.89 is: 15,912.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.07 : 28,267.16 = 11,530.89 : x
  2. Step 2: Convert to fraction form
    20,483.07/28,267.16 = 11,530.89/x
  3. Step 3: Cross multiply
    20,483.07x = 28,267.16 × 11,530.89
  4. Step 4: Simplify right side
    20,483.07x = 325,945,647.40
  5. Step 5: Solve for x
    x = 325,945,647.40/20,483.07
  6. Step 6: Final answer
    x = 15,912.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.