Home / 28,640.10-42,975.81-11,110.62

Finding the Fourth Proportional to 28,640.10, 42,975.81 and 11,110.62

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Solution

The fourth proportional to 28,640.10, 42,975.81 and 11,110.62 is: 16,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.10 : 42,975.81 = 11,110.62 : x
  2. Step 2: Convert to fraction form
    28,640.10/42,975.81 = 11,110.62/x
  3. Step 3: Cross multiply
    28,640.10x = 42,975.81 × 11,110.62
  4. Step 4: Simplify right side
    28,640.10x = 477,487,894.10
  5. Step 5: Solve for x
    x = 477,487,894.10/28,640.10
  6. Step 6: Final answer
    x = 16,672.01

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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.