Home / 30,931.50-46,359.21-14,268.39

Finding the Fourth Proportional to 30,931.50, 46,359.21 and 14,268.39

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Solution

The fourth proportional to 30,931.50, 46,359.21 and 14,268.39 is: 21,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.50 : 46,359.21 = 14,268.39 : x
  2. Step 2: Convert to fraction form
    30,931.50/46,359.21 = 14,268.39/x
  3. Step 3: Cross multiply
    30,931.50x = 46,359.21 × 14,268.39
  4. Step 4: Simplify right side
    30,931.50x = 661,471,288.37
  5. Step 5: Solve for x
    x = 661,471,288.37/30,931.50
  6. Step 6: Final answer
    x = 21,385.04

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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.