Home / 14,291.92-21,438.48-3,903.64

Finding the Fourth Proportional to 14,291.92, 21,438.48 and 3,903.64

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Solution

The fourth proportional to 14,291.92, 21,438.48 and 3,903.64 is: 5,855.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.92 : 21,438.48 = 3,903.64 : x
  2. Step 2: Convert to fraction form
    14,291.92/21,438.48 = 3,903.64/x
  3. Step 3: Cross multiply
    14,291.92x = 21,438.48 × 3,903.64
  4. Step 4: Simplify right side
    14,291.92x = 83,688,108.07
  5. Step 5: Solve for x
    x = 83,688,108.07/14,291.92
  6. Step 6: Final answer
    x = 5,855.62

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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.