Home / 23,870.56-32,940.20-13,260.80

Finding the Fourth Proportional to 23,870.56, 32,940.20 and 13,260.80

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Solution

The fourth proportional to 23,870.56, 32,940.20 and 13,260.80 is: 18,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,870.56 : 32,940.20 = 13,260.80 : x
  2. Step 2: Convert to fraction form
    23,870.56/32,940.20 = 13,260.80/x
  3. Step 3: Cross multiply
    23,870.56x = 32,940.20 × 13,260.80
  4. Step 4: Simplify right side
    23,870.56x = 436,813,404.16
  5. Step 5: Solve for x
    x = 436,813,404.16/23,870.56
  6. Step 6: Final answer
    x = 18,299.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.