Home / 39,075.39-53,923.95-21,170.88

Finding the Fourth Proportional to 39,075.39, 53,923.95 and 21,170.88

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Solution

The fourth proportional to 39,075.39, 53,923.95 and 21,170.88 is: 29,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,075.39 : 53,923.95 = 21,170.88 : x
  2. Step 2: Convert to fraction form
    39,075.39/53,923.95 = 21,170.88/x
  3. Step 3: Cross multiply
    39,075.39x = 53,923.95 × 21,170.88
  4. Step 4: Simplify right side
    39,075.39x = 1,141,617,474.58
  5. Step 5: Solve for x
    x = 1,141,617,474.58/39,075.39
  6. Step 6: Final answer
    x = 29,215.77

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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.