Home / 22,939.36-31,638.06-18,953.55

Finding the Fourth Proportional to 22,939.36, 31,638.06 and 18,953.55

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Solution

The fourth proportional to 22,939.36, 31,638.06 and 18,953.55 is: 26,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.36 : 31,638.06 = 18,953.55 : x
  2. Step 2: Convert to fraction form
    22,939.36/31,638.06 = 18,953.55/x
  3. Step 3: Cross multiply
    22,939.36x = 31,638.06 × 18,953.55
  4. Step 4: Simplify right side
    22,939.36x = 599,653,561.13
  5. Step 5: Solve for x
    x = 599,653,561.13/22,939.36
  6. Step 6: Final answer
    x = 26,140.81

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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.