Home / 30,098.21-45,147.75-14,304.85

Finding the Fourth Proportional to 30,098.21, 45,147.75 and 14,304.85

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Solution

The fourth proportional to 30,098.21, 45,147.75 and 14,304.85 is: 21,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,098.21 : 45,147.75 = 14,304.85 : x
  2. Step 2: Convert to fraction form
    30,098.21/45,147.75 = 14,304.85/x
  3. Step 3: Cross multiply
    30,098.21x = 45,147.75 × 14,304.85
  4. Step 4: Simplify right side
    30,098.21x = 645,831,740.19
  5. Step 5: Solve for x
    x = 645,831,740.19/30,098.21
  6. Step 6: Final answer
    x = 21,457.48

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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.