Home / 35,728.67-49,307.53-19,812.78

Finding the Fourth Proportional to 35,728.67, 49,307.53 and 19,812.78

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Solution

The fourth proportional to 35,728.67, 49,307.53 and 19,812.78 is: 27,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,728.67 : 49,307.53 = 19,812.78 : x
  2. Step 2: Convert to fraction form
    35,728.67/49,307.53 = 19,812.78/x
  3. Step 3: Cross multiply
    35,728.67x = 49,307.53 × 19,812.78
  4. Step 4: Simplify right side
    35,728.67x = 976,919,244.23
  5. Step 5: Solve for x
    x = 976,919,244.23/35,728.67
  6. Step 6: Final answer
    x = 27,342.73

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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.