Home / 30,931.60-46,359.96-14,268.88

Finding the Fourth Proportional to 30,931.60, 46,359.96 and 14,268.88

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Solution

The fourth proportional to 30,931.60, 46,359.96 and 14,268.88 is: 21,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.60 : 46,359.96 = 14,268.88 : x
  2. Step 2: Convert to fraction form
    30,931.60/46,359.96 = 14,268.88/x
  3. Step 3: Cross multiply
    30,931.60x = 46,359.96 × 14,268.88
  4. Step 4: Simplify right side
    30,931.60x = 661,504,706.04
  5. Step 5: Solve for x
    x = 661,504,706.04/30,931.60
  6. Step 6: Final answer
    x = 21,386.05

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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.