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Finding the Fourth Proportional to 35,307.25, 48,728.33 and 20,403.25

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Solution

The fourth proportional to 35,307.25, 48,728.33 and 20,403.25 is: 28,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,307.25 : 48,728.33 = 20,403.25 : x
  2. Step 2: Convert to fraction form
    35,307.25/48,728.33 = 20,403.25/x
  3. Step 3: Cross multiply
    35,307.25x = 48,728.33 × 20,403.25
  4. Step 4: Simplify right side
    35,307.25x = 994,216,299.07
  5. Step 5: Solve for x
    x = 994,216,299.07/35,307.25
  6. Step 6: Final answer
    x = 28,158.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.