Home / 43,404.49-65,112.97-13,421.07

Finding the Fourth Proportional to 43,404.49, 65,112.97 and 13,421.07

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Solution

The fourth proportional to 43,404.49, 65,112.97 and 13,421.07 is: 20,133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,404.49 : 65,112.97 = 13,421.07 : x
  2. Step 2: Convert to fraction form
    43,404.49/65,112.97 = 13,421.07/x
  3. Step 3: Cross multiply
    43,404.49x = 65,112.97 × 13,421.07
  4. Step 4: Simplify right side
    43,404.49x = 873,885,574.51
  5. Step 5: Solve for x
    x = 873,885,574.51/43,404.49
  6. Step 6: Final answer
    x = 20,133.53

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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.