Home / 19,991.86-29,962.59-10,133.62

Finding the Fourth Proportional to 19,991.86, 29,962.59 and 10,133.62

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Solution

The fourth proportional to 19,991.86, 29,962.59 and 10,133.62 is: 15,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.86 : 29,962.59 = 10,133.62 : x
  2. Step 2: Convert to fraction form
    19,991.86/29,962.59 = 10,133.62/x
  3. Step 3: Cross multiply
    19,991.86x = 29,962.59 × 10,133.62
  4. Step 4: Simplify right side
    19,991.86x = 303,629,501.28
  5. Step 5: Solve for x
    x = 303,629,501.28/19,991.86
  6. Step 6: Final answer
    x = 15,187.66

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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.