Home / 18,953.22-28,406.77-13,408.16

Finding the Fourth Proportional to 18,953.22, 28,406.77 and 13,408.16

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Solution

The fourth proportional to 18,953.22, 28,406.77 and 13,408.16 is: 20,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.22 : 28,406.77 = 13,408.16 : x
  2. Step 2: Convert to fraction form
    18,953.22/28,406.77 = 13,408.16/x
  3. Step 3: Cross multiply
    18,953.22x = 28,406.77 × 13,408.16
  4. Step 4: Simplify right side
    18,953.22x = 380,882,554.74
  5. Step 5: Solve for x
    x = 380,882,554.74/18,953.22
  6. Step 6: Final answer
    x = 20,095.93

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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.