Home / 38,984.94-53,799.18-21,079.90

Finding the Fourth Proportional to 38,984.94, 53,799.18 and 21,079.90

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Solution

The fourth proportional to 38,984.94, 53,799.18 and 21,079.90 is: 29,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.94 : 53,799.18 = 21,079.90 : x
  2. Step 2: Convert to fraction form
    38,984.94/53,799.18 = 21,079.90/x
  3. Step 3: Cross multiply
    38,984.94x = 53,799.18 × 21,079.90
  4. Step 4: Simplify right side
    38,984.94x = 1,134,081,255.43
  5. Step 5: Solve for x
    x = 1,134,081,255.43/38,984.94
  6. Step 6: Final answer
    x = 29,090.24

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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.