Home / 25,339.60-38,009.40-18,794.80

Finding the Fourth Proportional to 25,339.60, 38,009.40 and 18,794.80

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Solution

The fourth proportional to 25,339.60, 38,009.40 and 18,794.80 is: 28,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,339.60 : 38,009.40 = 18,794.80 : x
  2. Step 2: Convert to fraction form
    25,339.60/38,009.40 = 18,794.80/x
  3. Step 3: Cross multiply
    25,339.60x = 38,009.40 × 18,794.80
  4. Step 4: Simplify right side
    25,339.60x = 714,379,071.12
  5. Step 5: Solve for x
    x = 714,379,071.12/25,339.60
  6. Step 6: Final answer
    x = 28,192.20

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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.