Home / 30,259.57-45,389.34-9,199.78

Finding the Fourth Proportional to 30,259.57, 45,389.34 and 9,199.78

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Solution

The fourth proportional to 30,259.57, 45,389.34 and 9,199.78 is: 13,799.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.57 : 45,389.34 = 9,199.78 : x
  2. Step 2: Convert to fraction form
    30,259.57/45,389.34 = 9,199.78/x
  3. Step 3: Cross multiply
    30,259.57x = 45,389.34 × 9,199.78
  4. Step 4: Simplify right side
    30,259.57x = 417,571,942.35
  5. Step 5: Solve for x
    x = 417,571,942.35/30,259.57
  6. Step 6: Final answer
    x = 13,799.67

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Similar ratio
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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.