Home / 19,371.42-26,745.24-13,421.34

Finding the Fourth Proportional to 19,371.42, 26,745.24 and 13,421.34

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Solution

The fourth proportional to 19,371.42, 26,745.24 and 13,421.34 is: 18,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.42 : 26,745.24 = 13,421.34 : x
  2. Step 2: Convert to fraction form
    19,371.42/26,745.24 = 13,421.34/x
  3. Step 3: Cross multiply
    19,371.42x = 26,745.24 × 13,421.34
  4. Step 4: Simplify right side
    19,371.42x = 358,956,959.42
  5. Step 5: Solve for x
    x = 358,956,959.42/19,371.42
  6. Step 6: Final answer
    x = 18,530.23

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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.