Home / 19,823.85-27,342.63-12,743.51

Finding the Fourth Proportional to 19,823.85, 27,342.63 and 12,743.51

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Solution

The fourth proportional to 19,823.85, 27,342.63 and 12,743.51 is: 17,576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.85 : 27,342.63 = 12,743.51 : x
  2. Step 2: Convert to fraction form
    19,823.85/27,342.63 = 12,743.51/x
  3. Step 3: Cross multiply
    19,823.85x = 27,342.63 × 12,743.51
  4. Step 4: Simplify right side
    19,823.85x = 348,440,942.12
  5. Step 5: Solve for x
    x = 348,440,942.12/19,823.85
  6. Step 6: Final answer
    x = 17,576.86

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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.