Home / 20,588.04-28,411.08-11,638.44

Finding the Fourth Proportional to 20,588.04, 28,411.08 and 11,638.44

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Solution

The fourth proportional to 20,588.04, 28,411.08 and 11,638.44 is: 16,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.04 : 28,411.08 = 11,638.44 : x
  2. Step 2: Convert to fraction form
    20,588.04/28,411.08 = 11,638.44/x
  3. Step 3: Cross multiply
    20,588.04x = 28,411.08 × 11,638.44
  4. Step 4: Simplify right side
    20,588.04x = 330,660,649.92
  5. Step 5: Solve for x
    x = 330,660,649.92/20,588.04
  6. Step 6: Final answer
    x = 16,060.81

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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.