Home / 28,661.04-39,550.32-15,913.98

Finding the Fourth Proportional to 28,661.04, 39,550.32 and 15,913.98

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Solution

The fourth proportional to 28,661.04, 39,550.32 and 15,913.98 is: 21,960.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.04 : 39,550.32 = 15,913.98 : x
  2. Step 2: Convert to fraction form
    28,661.04/39,550.32 = 15,913.98/x
  3. Step 3: Cross multiply
    28,661.04x = 39,550.32 × 15,913.98
  4. Step 4: Simplify right side
    28,661.04x = 629,403,001.47
  5. Step 5: Solve for x
    x = 629,403,001.47/28,661.04
  6. Step 6: Final answer
    x = 21,960.23

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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.