Home / 39,075.51-53,924.16-21,170.97

Finding the Fourth Proportional to 39,075.51, 53,924.16 and 21,170.97

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Solution

The fourth proportional to 39,075.51, 53,924.16 and 21,170.97 is: 29,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,075.51 : 53,924.16 = 21,170.97 : x
  2. Step 2: Convert to fraction form
    39,075.51/53,924.16 = 21,170.97/x
  3. Step 3: Cross multiply
    39,075.51x = 53,924.16 × 21,170.97
  4. Step 4: Simplify right side
    39,075.51x = 1,141,626,773.64
  5. Step 5: Solve for x
    x = 1,141,626,773.64/39,075.51
  6. Step 6: Final answer
    x = 29,215.91

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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.