Home / 28,931.07-39,917.84-16,994.91

Finding the Fourth Proportional to 28,931.07, 39,917.84 and 16,994.91

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Solution

The fourth proportional to 28,931.07, 39,917.84 and 16,994.91 is: 23,448.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.07 : 39,917.84 = 16,994.91 : x
  2. Step 2: Convert to fraction form
    28,931.07/39,917.84 = 16,994.91/x
  3. Step 3: Cross multiply
    28,931.07x = 39,917.84 × 16,994.91
  4. Step 4: Simplify right side
    28,931.07x = 678,400,013.22
  5. Step 5: Solve for x
    x = 678,400,013.22/28,931.07
  6. Step 6: Final answer
    x = 23,448.84

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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.