Home / 39,037.35-53,871.48-21,132.36

Finding the Fourth Proportional to 39,037.35, 53,871.48 and 21,132.36

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Solution

The fourth proportional to 39,037.35, 53,871.48 and 21,132.36 is: 29,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,037.35 : 53,871.48 = 21,132.36 : x
  2. Step 2: Convert to fraction form
    39,037.35/53,871.48 = 21,132.36/x
  3. Step 3: Cross multiply
    39,037.35x = 53,871.48 × 21,132.36
  4. Step 4: Simplify right side
    39,037.35x = 1,138,431,509.09
  5. Step 5: Solve for x
    x = 1,138,431,509.09/39,037.35
  6. Step 6: Final answer
    x = 29,162.62

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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.