Home / 20,259.54-30,402.88-7,111.94

Finding the Fourth Proportional to 20,259.54, 30,402.88 and 7,111.94

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Solution

The fourth proportional to 20,259.54, 30,402.88 and 7,111.94 is: 10,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.54 : 30,402.88 = 7,111.94 : x
  2. Step 2: Convert to fraction form
    20,259.54/30,402.88 = 7,111.94/x
  3. Step 3: Cross multiply
    20,259.54x = 30,402.88 × 7,111.94
  4. Step 4: Simplify right side
    20,259.54x = 216,223,458.39
  5. Step 5: Solve for x
    x = 216,223,458.39/20,259.54
  6. Step 6: Final answer
    x = 10,672.67

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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.