Home / 19,421.32-26,790.60-13,456.48

Finding the Fourth Proportional to 19,421.32, 26,790.60 and 13,456.48

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Solution

The fourth proportional to 19,421.32, 26,790.60 and 13,456.48 is: 18,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.32 : 26,790.60 = 13,456.48 : x
  2. Step 2: Convert to fraction form
    19,421.32/26,790.60 = 13,456.48/x
  3. Step 3: Cross multiply
    19,421.32x = 26,790.60 × 13,456.48
  4. Step 4: Simplify right side
    19,421.32x = 360,507,173.09
  5. Step 5: Solve for x
    x = 360,507,173.09/19,421.32
  6. Step 6: Final answer
    x = 18,562.44

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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.