Home / 39,075.84-53,924.58-21,171.29

Finding the Fourth Proportional to 39,075.84, 53,924.58 and 21,171.29

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Solution

The fourth proportional to 39,075.84, 53,924.58 and 21,171.29 is: 29,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,075.84 : 53,924.58 = 21,171.29 : x
  2. Step 2: Convert to fraction form
    39,075.84/53,924.58 = 21,171.29/x
  3. Step 3: Cross multiply
    39,075.84x = 53,924.58 × 21,171.29
  4. Step 4: Simplify right side
    39,075.84x = 1,141,652,921.31
  5. Step 5: Solve for x
    x = 1,141,652,921.31/39,075.84
  6. Step 6: Final answer
    x = 29,216.34

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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.