Home / 30,561.60-45,842.40-12,093.60

Finding the Fourth Proportional to 30,561.60, 45,842.40 and 12,093.60

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Solution

The fourth proportional to 30,561.60, 45,842.40 and 12,093.60 is: 18,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,561.60 : 45,842.40 = 12,093.60 : x
  2. Step 2: Convert to fraction form
    30,561.60/45,842.40 = 12,093.60/x
  3. Step 3: Cross multiply
    30,561.60x = 45,842.40 × 12,093.60
  4. Step 4: Simplify right side
    30,561.60x = 554,399,648.64
  5. Step 5: Solve for x
    x = 554,399,648.64/30,561.60
  6. Step 6: Final answer
    x = 18,140.40

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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.