Home / 39,037.95-53,871.73-21,132.80

Finding the Fourth Proportional to 39,037.95, 53,871.73 and 21,132.80

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Solution

The fourth proportional to 39,037.95, 53,871.73 and 21,132.80 is: 29,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,037.95 : 53,871.73 = 21,132.80 : x
  2. Step 2: Convert to fraction form
    39,037.95/53,871.73 = 21,132.80/x
  3. Step 3: Cross multiply
    39,037.95x = 53,871.73 × 21,132.80
  4. Step 4: Simplify right side
    39,037.95x = 1,138,460,494.44
  5. Step 5: Solve for x
    x = 1,138,460,494.44/39,037.95
  6. Step 6: Final answer
    x = 29,162.92

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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.