Home / 28,880.75-43,320.93-11,783.57

Finding the Fourth Proportional to 28,880.75, 43,320.93 and 11,783.57

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Solution

The fourth proportional to 28,880.75, 43,320.93 and 11,783.57 is: 17,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.75 : 43,320.93 = 11,783.57 : x
  2. Step 2: Convert to fraction form
    28,880.75/43,320.93 = 11,783.57/x
  3. Step 3: Cross multiply
    28,880.75x = 43,320.93 × 11,783.57
  4. Step 4: Simplify right side
    28,880.75x = 510,475,211.12
  5. Step 5: Solve for x
    x = 510,475,211.12/28,880.75
  6. Step 6: Final answer
    x = 17,675.28

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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.