Home / 35,913.12-49,559.36-19,780.89

Finding the Fourth Proportional to 35,913.12, 49,559.36 and 19,780.89

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Solution

The fourth proportional to 35,913.12, 49,559.36 and 19,780.89 is: 27,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,913.12 : 49,559.36 = 19,780.89 : x
  2. Step 2: Convert to fraction form
    35,913.12/49,559.36 = 19,780.89/x
  3. Step 3: Cross multiply
    35,913.12x = 49,559.36 × 19,780.89
  4. Step 4: Simplify right side
    35,913.12x = 980,328,149.73
  5. Step 5: Solve for x
    x = 980,328,149.73/35,913.12
  6. Step 6: Final answer
    x = 27,297.21

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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.