Home / 20,435.40-30,653.10-7,302.60

Finding the Fourth Proportional to 20,435.40, 30,653.10 and 7,302.60

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Solution

The fourth proportional to 20,435.40, 30,653.10 and 7,302.60 is: 10,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.40 : 30,653.10 = 7,302.60 : x
  2. Step 2: Convert to fraction form
    20,435.40/30,653.10 = 7,302.60/x
  3. Step 3: Cross multiply
    20,435.40x = 30,653.10 × 7,302.60
  4. Step 4: Simplify right side
    20,435.40x = 223,847,328.06
  5. Step 5: Solve for x
    x = 223,847,328.06/20,435.40
  6. Step 6: Final answer
    x = 10,953.90

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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.