Home / 30,687.66-45,993.75-15,888.12

Finding the Fourth Proportional to 30,687.66, 45,993.75 and 15,888.12

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Solution

The fourth proportional to 30,687.66, 45,993.75 and 15,888.12 is: 23,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687.66 : 45,993.75 = 15,888.12 : x
  2. Step 2: Convert to fraction form
    30,687.66/45,993.75 = 15,888.12/x
  3. Step 3: Cross multiply
    30,687.66x = 45,993.75 × 15,888.12
  4. Step 4: Simplify right side
    30,687.66x = 730,754,219.25
  5. Step 5: Solve for x
    x = 730,754,219.25/30,687.66
  6. Step 6: Final answer
    x = 23,812.64

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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.