Home / 19,089.21-28,642.32-7,403.34

Finding the Fourth Proportional to 19,089.21, 28,642.32 and 7,403.34

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Solution

The fourth proportional to 19,089.21, 28,642.32 and 7,403.34 is: 11,108.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.21 : 28,642.32 = 7,403.34 : x
  2. Step 2: Convert to fraction form
    19,089.21/28,642.32 = 7,403.34/x
  3. Step 3: Cross multiply
    19,089.21x = 28,642.32 × 7,403.34
  4. Step 4: Simplify right side
    19,089.21x = 212,048,833.35
  5. Step 5: Solve for x
    x = 212,048,833.35/19,089.21
  6. Step 6: Final answer
    x = 11,108.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.