Home / 20,664.24-28,508.76-12,703.92

Finding the Fourth Proportional to 20,664.24, 28,508.76 and 12,703.92

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Solution

The fourth proportional to 20,664.24, 28,508.76 and 12,703.92 is: 17,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.24 : 28,508.76 = 12,703.92 : x
  2. Step 2: Convert to fraction form
    20,664.24/28,508.76 = 12,703.92/x
  3. Step 3: Cross multiply
    20,664.24x = 28,508.76 × 12,703.92
  4. Step 4: Simplify right side
    20,664.24x = 362,173,006.34
  5. Step 5: Solve for x
    x = 362,173,006.34/20,664.24
  6. Step 6: Final answer
    x = 17,526.56

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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.