Home / 53,308.13-79,912.98-20,005.58

Finding the Fourth Proportional to 53,308.13, 79,912.98 and 20,005.58

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Solution

The fourth proportional to 53,308.13, 79,912.98 and 20,005.58 is: 29,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,308.13 : 79,912.98 = 20,005.58 : x
  2. Step 2: Convert to fraction form
    53,308.13/79,912.98 = 20,005.58/x
  3. Step 3: Cross multiply
    53,308.13x = 79,912.98 × 20,005.58
  4. Step 4: Simplify right side
    53,308.13x = 1,598,705,714.21
  5. Step 5: Solve for x
    x = 1,598,705,714.21/53,308.13
  6. Step 6: Final answer
    x = 29,989.91

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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.