Home / 20,518.92-28,316.21-12,026.07

Finding the Fourth Proportional to 20,518.92, 28,316.21 and 12,026.07

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Solution

The fourth proportional to 20,518.92, 28,316.21 and 12,026.07 is: 16,596.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.92 : 28,316.21 = 12,026.07 : x
  2. Step 2: Convert to fraction form
    20,518.92/28,316.21 = 12,026.07/x
  3. Step 3: Cross multiply
    20,518.92x = 28,316.21 × 12,026.07
  4. Step 4: Simplify right side
    20,518.92x = 340,532,663.46
  5. Step 5: Solve for x
    x = 340,532,663.46/20,518.92
  6. Step 6: Final answer
    x = 16,596.03

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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.