Home / 38,720.45-58,080.66-11,018.45

Finding the Fourth Proportional to 38,720.45, 58,080.66 and 11,018.45

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Solution

The fourth proportional to 38,720.45, 58,080.66 and 11,018.45 is: 16,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720.45 : 58,080.66 = 11,018.45 : x
  2. Step 2: Convert to fraction form
    38,720.45/58,080.66 = 11,018.45/x
  3. Step 3: Cross multiply
    38,720.45x = 58,080.66 × 11,018.45
  4. Step 4: Simplify right side
    38,720.45x = 639,958,557.77
  5. Step 5: Solve for x
    x = 639,958,557.77/38,720.45
  6. Step 6: Final answer
    x = 16,527.67

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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.