Home / 19,530.81-26,953.02-11,571.75

Finding the Fourth Proportional to 19,530.81, 26,953.02 and 11,571.75

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Solution

The fourth proportional to 19,530.81, 26,953.02 and 11,571.75 is: 15,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.81 : 26,953.02 = 11,571.75 : x
  2. Step 2: Convert to fraction form
    19,530.81/26,953.02 = 11,571.75/x
  3. Step 3: Cross multiply
    19,530.81x = 26,953.02 × 11,571.75
  4. Step 4: Simplify right side
    19,530.81x = 311,893,609.19
  5. Step 5: Solve for x
    x = 311,893,609.19/19,530.81
  6. Step 6: Final answer
    x = 15,969.31

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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.