Home / 20,466.15-28,206.27-15,395.96

Finding the Fourth Proportional to 20,466.15, 28,206.27 and 15,395.96

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Solution

The fourth proportional to 20,466.15, 28,206.27 and 15,395.96 is: 21,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.15 : 28,206.27 = 15,395.96 : x
  2. Step 2: Convert to fraction form
    20,466.15/28,206.27 = 15,395.96/x
  3. Step 3: Cross multiply
    20,466.15x = 28,206.27 × 15,395.96
  4. Step 4: Simplify right side
    20,466.15x = 434,262,463.64
  5. Step 5: Solve for x
    x = 434,262,463.64/20,466.15
  6. Step 6: Final answer
    x = 21,218.57

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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.