Home / 39,075.38-53,924.04-21,170.51

Finding the Fourth Proportional to 39,075.38, 53,924.04 and 21,170.51

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Solution

The fourth proportional to 39,075.38, 53,924.04 and 21,170.51 is: 29,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,075.38 : 53,924.04 = 21,170.51 : x
  2. Step 2: Convert to fraction form
    39,075.38/53,924.04 = 21,170.51/x
  3. Step 3: Cross multiply
    39,075.38x = 53,924.04 × 21,170.51
  4. Step 4: Simplify right side
    39,075.38x = 1,141,599,428.06
  5. Step 5: Solve for x
    x = 1,141,599,428.06/39,075.38
  6. Step 6: Final answer
    x = 29,215.31

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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.