Home / 23,488.40-35,232.60-12,390.80

Finding the Fourth Proportional to 23,488.40, 35,232.60 and 12,390.80

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Solution

The fourth proportional to 23,488.40, 35,232.60 and 12,390.80 is: 18,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,488.40 : 35,232.60 = 12,390.80 : x
  2. Step 2: Convert to fraction form
    23,488.40/35,232.60 = 12,390.80/x
  3. Step 3: Cross multiply
    23,488.40x = 35,232.60 × 12,390.80
  4. Step 4: Simplify right side
    23,488.40x = 436,560,100.08
  5. Step 5: Solve for x
    x = 436,560,100.08/23,488.40
  6. Step 6: Final answer
    x = 18,586.20

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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.