Home / 28,838.16-43,231.32-11,320.56

Finding the Fourth Proportional to 28,838.16, 43,231.32 and 11,320.56

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Solution

The fourth proportional to 28,838.16, 43,231.32 and 11,320.56 is: 16,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.16 : 43,231.32 = 11,320.56 : x
  2. Step 2: Convert to fraction form
    28,838.16/43,231.32 = 11,320.56/x
  3. Step 3: Cross multiply
    28,838.16x = 43,231.32 × 11,320.56
  4. Step 4: Simplify right side
    28,838.16x = 489,402,751.94
  5. Step 5: Solve for x
    x = 489,402,751.94/28,838.16
  6. Step 6: Final answer
    x = 16,970.66

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1.5x scale

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.