Home / 30,039.60-45,059.40-14,458.80

Finding the Fourth Proportional to 30,039.60, 45,059.40 and 14,458.80

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Solution

The fourth proportional to 30,039.60, 45,059.40 and 14,458.80 is: 21,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,039.60 : 45,059.40 = 14,458.80 : x
  2. Step 2: Convert to fraction form
    30,039.60/45,059.40 = 14,458.80/x
  3. Step 3: Cross multiply
    30,039.60x = 45,059.40 × 14,458.80
  4. Step 4: Simplify right side
    30,039.60x = 651,504,852.72
  5. Step 5: Solve for x
    x = 651,504,852.72/30,039.60
  6. Step 6: Final answer
    x = 21,688.20

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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.