Home / 39,828.96-54,965.16-21,924.36

Finding the Fourth Proportional to 39,828.96, 54,965.16 and 21,924.36

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Solution

The fourth proportional to 39,828.96, 54,965.16 and 21,924.36 is: 30,256.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,828.96 : 54,965.16 = 21,924.36 : x
  2. Step 2: Convert to fraction form
    39,828.96/54,965.16 = 21,924.36/x
  3. Step 3: Cross multiply
    39,828.96x = 54,965.16 × 21,924.36
  4. Step 4: Simplify right side
    39,828.96x = 1,205,075,955.30
  5. Step 5: Solve for x
    x = 1,205,075,955.30/39,828.96
  6. Step 6: Final answer
    x = 30,256.27

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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.