Home / 30,302.36-45,453.49-13,642.93

Finding the Fourth Proportional to 30,302.36, 45,453.49 and 13,642.93

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Solution

The fourth proportional to 30,302.36, 45,453.49 and 13,642.93 is: 20,464.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.36 : 45,453.49 = 13,642.93 : x
  2. Step 2: Convert to fraction form
    30,302.36/45,453.49 = 13,642.93/x
  3. Step 3: Cross multiply
    30,302.36x = 45,453.49 × 13,642.93
  4. Step 4: Simplify right side
    30,302.36x = 620,118,634.58
  5. Step 5: Solve for x
    x = 620,118,634.58/30,302.36
  6. Step 6: Final answer
    x = 20,464.37

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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.