Home / 31,740.48-43,774.56-19,791.36

Finding the Fourth Proportional to 31,740.48, 43,774.56 and 19,791.36

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Solution

The fourth proportional to 31,740.48, 43,774.56 and 19,791.36 is: 27,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,740.48 : 43,774.56 = 19,791.36 : x
  2. Step 2: Convert to fraction form
    31,740.48/43,774.56 = 19,791.36/x
  3. Step 3: Cross multiply
    31,740.48x = 43,774.56 × 19,791.36
  4. Step 4: Simplify right side
    31,740.48x = 866,358,075.80
  5. Step 5: Solve for x
    x = 866,358,075.80/31,740.48
  6. Step 6: Final answer
    x = 27,295.05

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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.