Home / 39,455.02-54,447.95-21,549.97

Finding the Fourth Proportional to 39,455.02, 54,447.95 and 21,549.97

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Solution

The fourth proportional to 39,455.02, 54,447.95 and 21,549.97 is: 29,738.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,455.02 : 54,447.95 = 21,549.97 : x
  2. Step 2: Convert to fraction form
    39,455.02/54,447.95 = 21,549.97/x
  3. Step 3: Cross multiply
    39,455.02x = 54,447.95 × 21,549.97
  4. Step 4: Simplify right side
    39,455.02x = 1,173,351,383.51
  5. Step 5: Solve for x
    x = 1,173,351,383.51/39,455.02
  6. Step 6: Final answer
    x = 29,738.97

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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.