Home / 28,021.72-42,006.66-10,503.04

Finding the Fourth Proportional to 28,021.72, 42,006.66 and 10,503.04

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Solution

The fourth proportional to 28,021.72, 42,006.66 and 10,503.04 is: 15,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.72 : 42,006.66 = 10,503.04 : x
  2. Step 2: Convert to fraction form
    28,021.72/42,006.66 = 10,503.04/x
  3. Step 3: Cross multiply
    28,021.72x = 42,006.66 × 10,503.04
  4. Step 4: Simplify right side
    28,021.72x = 441,197,630.25
  5. Step 5: Solve for x
    x = 441,197,630.25/28,021.72
  6. Step 6: Final answer
    x = 15,744.84

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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.