Home / 33,923.84-46,784.28-21,178.20

Finding the Fourth Proportional to 33,923.84, 46,784.28 and 21,178.20

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Solution

The fourth proportional to 33,923.84, 46,784.28 and 21,178.20 is: 29,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,923.84 : 46,784.28 = 21,178.20 : x
  2. Step 2: Convert to fraction form
    33,923.84/46,784.28 = 21,178.20/x
  3. Step 3: Cross multiply
    33,923.84x = 46,784.28 × 21,178.20
  4. Step 4: Simplify right side
    33,923.84x = 990,806,838.70
  5. Step 5: Solve for x
    x = 990,806,838.70/33,923.84
  6. Step 6: Final answer
    x = 29,206.80

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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.