Home / 39,075.90-53,924.67-21,171.36

Finding the Fourth Proportional to 39,075.90, 53,924.67 and 21,171.36

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Solution

The fourth proportional to 39,075.90, 53,924.67 and 21,171.36 is: 29,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,075.90 : 53,924.67 = 21,171.36 : x
  2. Step 2: Convert to fraction form
    39,075.90/53,924.67 = 21,171.36/x
  3. Step 3: Cross multiply
    39,075.90x = 53,924.67 × 21,171.36
  4. Step 4: Simplify right side
    39,075.90x = 1,141,658,601.45
  5. Step 5: Solve for x
    x = 1,141,658,601.45/39,075.90
  6. Step 6: Final answer
    x = 29,216.44

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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.