Home / 50,928.90-70,279.80-28,268.84

Finding the Fourth Proportional to 50,928.90, 70,279.80 and 28,268.84

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Solution

The fourth proportional to 50,928.90, 70,279.80 and 28,268.84 is: 39,009.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,928.90 : 70,279.80 = 28,268.84 : x
  2. Step 2: Convert to fraction form
    50,928.90/70,279.80 = 28,268.84/x
  3. Step 3: Cross multiply
    50,928.90x = 70,279.80 × 28,268.84
  4. Step 4: Simplify right side
    50,928.90x = 1,986,728,421.43
  5. Step 5: Solve for x
    x = 1,986,728,421.43/50,928.90
  6. Step 6: Final answer
    x = 39,009.84

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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.