Home / 19,991.37-27,581.54-12,030.69

Finding the Fourth Proportional to 19,991.37, 27,581.54 and 12,030.69

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Solution

The fourth proportional to 19,991.37, 27,581.54 and 12,030.69 is: 16,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.37 : 27,581.54 = 12,030.69 : x
  2. Step 2: Convert to fraction form
    19,991.37/27,581.54 = 12,030.69/x
  3. Step 3: Cross multiply
    19,991.37x = 27,581.54 × 12,030.69
  4. Step 4: Simplify right side
    19,991.37x = 331,824,897.31
  5. Step 5: Solve for x
    x = 331,824,897.31/19,991.37
  6. Step 6: Final answer
    x = 16,598.41

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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.