Home / 19,619.52-27,077.40-12,543.36

Finding the Fourth Proportional to 19,619.52, 27,077.40 and 12,543.36

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Solution

The fourth proportional to 19,619.52, 27,077.40 and 12,543.36 is: 17,311.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.52 : 27,077.40 = 12,543.36 : x
  2. Step 2: Convert to fraction form
    19,619.52/27,077.40 = 12,543.36/x
  3. Step 3: Cross multiply
    19,619.52x = 27,077.40 × 12,543.36
  4. Step 4: Simplify right side
    19,619.52x = 339,641,576.06
  5. Step 5: Solve for x
    x = 339,641,576.06/19,619.52
  6. Step 6: Final answer
    x = 17,311.41

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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.