Home / 30,530.51-45,736.14-21,041.13

Finding the Fourth Proportional to 30,530.51, 45,736.14 and 21,041.13

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Solution

The fourth proportional to 30,530.51, 45,736.14 and 21,041.13 is: 31,520.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530.51 : 45,736.14 = 21,041.13 : x
  2. Step 2: Convert to fraction form
    30,530.51/45,736.14 = 21,041.13/x
  3. Step 3: Cross multiply
    30,530.51x = 45,736.14 × 21,041.13
  4. Step 4: Simplify right side
    30,530.51x = 962,340,067.44
  5. Step 5: Solve for x
    x = 962,340,067.44/30,530.51
  6. Step 6: Final answer
    x = 31,520.61

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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.