Home / 39,979.02-59,971.41-11,514.81

Finding the Fourth Proportional to 39,979.02, 59,971.41 and 11,514.81

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Solution

The fourth proportional to 39,979.02, 59,971.41 and 11,514.81 is: 17,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.02 : 59,971.41 = 11,514.81 : x
  2. Step 2: Convert to fraction form
    39,979.02/59,971.41 = 11,514.81/x
  3. Step 3: Cross multiply
    39,979.02x = 59,971.41 × 11,514.81
  4. Step 4: Simplify right side
    39,979.02x = 690,559,391.58
  5. Step 5: Solve for x
    x = 690,559,391.58/39,979.02
  6. Step 6: Final answer
    x = 17,273.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.