Home / 30,713.99-46,061.19-11,989.48

Finding the Fourth Proportional to 30,713.99, 46,061.19 and 11,989.48

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Solution

The fourth proportional to 30,713.99, 46,061.19 and 11,989.48 is: 17,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,713.99 : 46,061.19 = 11,989.48 : x
  2. Step 2: Convert to fraction form
    30,713.99/46,061.19 = 11,989.48/x
  3. Step 3: Cross multiply
    30,713.99x = 46,061.19 × 11,989.48
  4. Step 4: Simplify right side
    30,713.99x = 552,249,716.28
  5. Step 5: Solve for x
    x = 552,249,716.28/30,713.99
  6. Step 6: Final answer
    x = 17,980.40

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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.