Home / 28,716.86-43,031.33-19,322.08

Finding the Fourth Proportional to 28,716.86, 43,031.33 and 19,322.08

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Solution

The fourth proportional to 28,716.86, 43,031.33 and 19,322.08 is: 28,953.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.86 : 43,031.33 = 19,322.08 : x
  2. Step 2: Convert to fraction form
    28,716.86/43,031.33 = 19,322.08/x
  3. Step 3: Cross multiply
    28,716.86x = 43,031.33 × 19,322.08
  4. Step 4: Simplify right side
    28,716.86x = 831,454,800.77
  5. Step 5: Solve for x
    x = 831,454,800.77/28,716.86
  6. Step 6: Final answer
    x = 28,953.54

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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.