Home / 30,999.15-46,478.73-13,241.40

Finding the Fourth Proportional to 30,999.15, 46,478.73 and 13,241.40

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Solution

The fourth proportional to 30,999.15, 46,478.73 and 13,241.40 is: 19,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999.15 : 46,478.73 = 13,241.40 : x
  2. Step 2: Convert to fraction form
    30,999.15/46,478.73 = 13,241.40/x
  3. Step 3: Cross multiply
    30,999.15x = 46,478.73 × 13,241.40
  4. Step 4: Simplify right side
    30,999.15x = 615,443,455.42
  5. Step 5: Solve for x
    x = 615,443,455.42/30,999.15
  6. Step 6: Final answer
    x = 19,853.56

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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.