Home / 19,988.63-27,586.73-11,605.13

Finding the Fourth Proportional to 19,988.63, 27,586.73 and 11,605.13

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Solution

The fourth proportional to 19,988.63, 27,586.73 and 11,605.13 is: 16,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.63 : 27,586.73 = 11,605.13 : x
  2. Step 2: Convert to fraction form
    19,988.63/27,586.73 = 11,605.13/x
  3. Step 3: Cross multiply
    19,988.63x = 27,586.73 × 11,605.13
  4. Step 4: Simplify right side
    19,988.63x = 320,147,479.00
  5. Step 5: Solve for x
    x = 320,147,479.00/19,988.63
  6. Step 6: Final answer
    x = 16,016.48

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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.