Home / 36,900.86-50,924.31-20,987.60

Finding the Fourth Proportional to 36,900.86, 50,924.31 and 20,987.60

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Solution

The fourth proportional to 36,900.86, 50,924.31 and 20,987.60 is: 28,963.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,900.86 : 50,924.31 = 20,987.60 : x
  2. Step 2: Convert to fraction form
    36,900.86/50,924.31 = 20,987.60/x
  3. Step 3: Cross multiply
    36,900.86x = 50,924.31 × 20,987.60
  4. Step 4: Simplify right side
    36,900.86x = 1,068,779,048.56
  5. Step 5: Solve for x
    x = 1,068,779,048.56/36,900.86
  6. Step 6: Final answer
    x = 28,963.53

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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.