Home / 19,421.88-26,799.66-11,038.20

Finding the Fourth Proportional to 19,421.88, 26,799.66 and 11,038.20

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Solution

The fourth proportional to 19,421.88, 26,799.66 and 11,038.20 is: 15,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.88 : 26,799.66 = 11,038.20 : x
  2. Step 2: Convert to fraction form
    19,421.88/26,799.66 = 11,038.20/x
  3. Step 3: Cross multiply
    19,421.88x = 26,799.66 × 11,038.20
  4. Step 4: Simplify right side
    19,421.88x = 295,820,007.01
  5. Step 5: Solve for x
    x = 295,820,007.01/19,421.88
  6. Step 6: Final answer
    x = 15,231.28

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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.