Home / 30,765.96-46,156.14-9,989.46

Finding the Fourth Proportional to 30,765.96, 46,156.14 and 9,989.46

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Solution

The fourth proportional to 30,765.96, 46,156.14 and 9,989.46 is: 14,986.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.96 : 46,156.14 = 9,989.46 : x
  2. Step 2: Convert to fraction form
    30,765.96/46,156.14 = 9,989.46/x
  3. Step 3: Cross multiply
    30,765.96x = 46,156.14 × 9,989.46
  4. Step 4: Simplify right side
    30,765.96x = 461,074,914.28
  5. Step 5: Solve for x
    x = 461,074,914.28/30,765.96
  6. Step 6: Final answer
    x = 14,986.53

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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.