Home / 15,090.09-20,763.30-14,703.72

Finding the Fourth Proportional to 15,090.09, 20,763.30 and 14,703.72

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Solution

The fourth proportional to 15,090.09, 20,763.30 and 14,703.72 is: 20,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.09 : 20,763.30 = 14,703.72 : x
  2. Step 2: Convert to fraction form
    15,090.09/20,763.30 = 14,703.72/x
  3. Step 3: Cross multiply
    15,090.09x = 20,763.30 × 14,703.72
  4. Step 4: Simplify right side
    15,090.09x = 305,297,749.48
  5. Step 5: Solve for x
    x = 305,297,749.48/15,090.09
  6. Step 6: Final answer
    x = 20,231.67

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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.