Home / 33,990.76-46,922.93-20,385.28

Finding the Fourth Proportional to 33,990.76, 46,922.93 and 20,385.28

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Solution

The fourth proportional to 33,990.76, 46,922.93 and 20,385.28 is: 28,141.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,990.76 : 46,922.93 = 20,385.28 : x
  2. Step 2: Convert to fraction form
    33,990.76/46,922.93 = 20,385.28/x
  3. Step 3: Cross multiply
    33,990.76x = 46,922.93 × 20,385.28
  4. Step 4: Simplify right side
    33,990.76x = 956,537,066.47
  5. Step 5: Solve for x
    x = 956,537,066.47/33,990.76
  6. Step 6: Final answer
    x = 28,141.09

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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.