Home / 30,284.57-41,756.94-20,729.07

Finding the Fourth Proportional to 30,284.57, 41,756.94 and 20,729.07

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Solution

The fourth proportional to 30,284.57, 41,756.94 and 20,729.07 is: 28,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,284.57 : 41,756.94 = 20,729.07 : x
  2. Step 2: Convert to fraction form
    30,284.57/41,756.94 = 20,729.07/x
  3. Step 3: Cross multiply
    30,284.57x = 41,756.94 × 20,729.07
  4. Step 4: Simplify right side
    30,284.57x = 865,582,532.25
  5. Step 5: Solve for x
    x = 865,582,532.25/30,284.57
  6. Step 6: Final answer
    x = 28,581.64

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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.