Home / 28,742.84-43,119.12-13,161.68

Finding the Fourth Proportional to 28,742.84, 43,119.12 and 13,161.68

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Solution

The fourth proportional to 28,742.84, 43,119.12 and 13,161.68 is: 19,744.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.84 : 43,119.12 = 13,161.68 : x
  2. Step 2: Convert to fraction form
    28,742.84/43,119.12 = 13,161.68/x
  3. Step 3: Cross multiply
    28,742.84x = 43,119.12 × 13,161.68
  4. Step 4: Simplify right side
    28,742.84x = 567,520,059.32
  5. Step 5: Solve for x
    x = 567,520,059.32/28,742.84
  6. Step 6: Final answer
    x = 19,744.75

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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.