Home / 40,285.86-60,429.36-13,991.22

Finding the Fourth Proportional to 40,285.86, 60,429.36 and 13,991.22

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Solution

The fourth proportional to 40,285.86, 60,429.36 and 13,991.22 is: 20,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,285.86 : 60,429.36 = 13,991.22 : x
  2. Step 2: Convert to fraction form
    40,285.86/60,429.36 = 13,991.22/x
  3. Step 3: Cross multiply
    40,285.86x = 60,429.36 × 13,991.22
  4. Step 4: Simplify right side
    40,285.86x = 845,480,470.22
  5. Step 5: Solve for x
    x = 845,480,470.22/40,285.86
  6. Step 6: Final answer
    x = 20,987.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.