Home / 23,147.13-31,943.01-12,536.81

Finding the Fourth Proportional to 23,147.13, 31,943.01 and 12,536.81

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Solution

The fourth proportional to 23,147.13, 31,943.01 and 12,536.81 is: 17,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,147.13 : 31,943.01 = 12,536.81 : x
  2. Step 2: Convert to fraction form
    23,147.13/31,943.01 = 12,536.81/x
  3. Step 3: Cross multiply
    23,147.13x = 31,943.01 × 12,536.81
  4. Step 4: Simplify right side
    23,147.13x = 400,463,224.80
  5. Step 5: Solve for x
    x = 400,463,224.80/23,147.13
  6. Step 6: Final answer
    x = 17,300.77

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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.