Home / 23,182.13-31,991.34-12,571.77

Finding the Fourth Proportional to 23,182.13, 31,991.34 and 12,571.77

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Solution

The fourth proportional to 23,182.13, 31,991.34 and 12,571.77 is: 17,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,182.13 : 31,991.34 = 12,571.77 : x
  2. Step 2: Convert to fraction form
    23,182.13/31,991.34 = 12,571.77/x
  3. Step 3: Cross multiply
    23,182.13x = 31,991.34 × 12,571.77
  4. Step 4: Simplify right side
    23,182.13x = 402,187,768.47
  5. Step 5: Solve for x
    x = 402,187,768.47/23,182.13
  6. Step 6: Final answer
    x = 17,349.05

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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.