Home / 43,459.88-65,138.70-20,036.84

Finding the Fourth Proportional to 43,459.88, 65,138.70 and 20,036.84

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Solution

The fourth proportional to 43,459.88, 65,138.70 and 20,036.84 is: 30,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,459.88 : 65,138.70 = 20,036.84 : x
  2. Step 2: Convert to fraction form
    43,459.88/65,138.70 = 20,036.84/x
  3. Step 3: Cross multiply
    43,459.88x = 65,138.70 × 20,036.84
  4. Step 4: Simplify right side
    43,459.88x = 1,305,173,709.71
  5. Step 5: Solve for x
    x = 1,305,173,709.71/43,459.88
  6. Step 6: Final answer
    x = 30,031.69

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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.