Home / 33,561.32-46,332.42-20,990.12

Finding the Fourth Proportional to 33,561.32, 46,332.42 and 20,990.12

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Solution

The fourth proportional to 33,561.32, 46,332.42 and 20,990.12 is: 28,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,561.32 : 46,332.42 = 20,990.12 : x
  2. Step 2: Convert to fraction form
    33,561.32/46,332.42 = 20,990.12/x
  3. Step 3: Cross multiply
    33,561.32x = 46,332.42 × 20,990.12
  4. Step 4: Simplify right side
    33,561.32x = 972,523,055.69
  5. Step 5: Solve for x
    x = 972,523,055.69/33,561.32
  6. Step 6: Final answer
    x = 28,977.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.