Home / 28,964.06-39,972-16,216.52

Finding the Fourth Proportional to 28,964.06, 39,972 and 16,216.52

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Solution

The fourth proportional to 28,964.06, 39,972 and 16,216.52 is: 22,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.06 : 39,972 = 16,216.52 : x
  2. Step 2: Convert to fraction form
    28,964.06/39,972 = 16,216.52/x
  3. Step 3: Cross multiply
    28,964.06x = 39,972 × 16,216.52
  4. Step 4: Simplify right side
    28,964.06x = 648,206,737.44
  5. Step 5: Solve for x
    x = 648,206,737.44/28,964.06
  6. Step 6: Final answer
    x = 22,379.69

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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.