Home / 30,276.40-45,414.60-11,808.40

Finding the Fourth Proportional to 30,276.40, 45,414.60 and 11,808.40

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Solution

The fourth proportional to 30,276.40, 45,414.60 and 11,808.40 is: 17,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.40 : 45,414.60 = 11,808.40 : x
  2. Step 2: Convert to fraction form
    30,276.40/45,414.60 = 11,808.40/x
  3. Step 3: Cross multiply
    30,276.40x = 45,414.60 × 11,808.40
  4. Step 4: Simplify right side
    30,276.40x = 536,273,762.64
  5. Step 5: Solve for x
    x = 536,273,762.64/30,276.40
  6. Step 6: Final answer
    x = 17,712.60

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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.