Home / 19,801.96-27,328.26-11,421.16

Finding the Fourth Proportional to 19,801.96, 27,328.26 and 11,421.16

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Solution

The fourth proportional to 19,801.96, 27,328.26 and 11,421.16 is: 15,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,801.96 : 27,328.26 = 11,421.16 : x
  2. Step 2: Convert to fraction form
    19,801.96/27,328.26 = 11,421.16/x
  3. Step 3: Cross multiply
    19,801.96x = 27,328.26 × 11,421.16
  4. Step 4: Simplify right side
    19,801.96x = 312,120,429.98
  5. Step 5: Solve for x
    x = 312,120,429.98/19,801.96
  6. Step 6: Final answer
    x = 15,762.10

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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.