Home / 41,980.75-57,914.69-28,364.40

Finding the Fourth Proportional to 41,980.75, 57,914.69 and 28,364.40

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Solution

The fourth proportional to 41,980.75, 57,914.69 and 28,364.40 is: 39,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,980.75 : 57,914.69 = 28,364.40 : x
  2. Step 2: Convert to fraction form
    41,980.75/57,914.69 = 28,364.40/x
  3. Step 3: Cross multiply
    41,980.75x = 57,914.69 × 28,364.40
  4. Step 4: Simplify right side
    41,980.75x = 1,642,715,433.04
  5. Step 5: Solve for x
    x = 1,642,715,433.04/41,980.75
  6. Step 6: Final answer
    x = 39,130.21

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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.