Home / 28,222.68-42,334.62-9,503.28

Finding the Fourth Proportional to 28,222.68, 42,334.62 and 9,503.28

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Solution

The fourth proportional to 28,222.68, 42,334.62 and 9,503.28 is: 14,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.68 : 42,334.62 = 9,503.28 : x
  2. Step 2: Convert to fraction form
    28,222.68/42,334.62 = 9,503.28/x
  3. Step 3: Cross multiply
    28,222.68x = 42,334.62 × 9,503.28
  4. Step 4: Simplify right side
    28,222.68x = 402,317,747.55
  5. Step 5: Solve for x
    x = 402,317,747.55/28,222.68
  6. Step 6: Final answer
    x = 14,255.12

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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.