Home / 28,400.04-39,179.73-16,908.51

Finding the Fourth Proportional to 28,400.04, 39,179.73 and 16,908.51

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Solution

The fourth proportional to 28,400.04, 39,179.73 and 16,908.51 is: 23,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.04 : 39,179.73 = 16,908.51 : x
  2. Step 2: Convert to fraction form
    28,400.04/39,179.73 = 16,908.51/x
  3. Step 3: Cross multiply
    28,400.04x = 39,179.73 × 16,908.51
  4. Step 4: Simplify right side
    28,400.04x = 662,470,856.50
  5. Step 5: Solve for x
    x = 662,470,856.50/28,400.04
  6. Step 6: Final answer
    x = 23,326.41

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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.