Home / 25,573.20-38,359.80-13,131.60

Finding the Fourth Proportional to 25,573.20, 38,359.80 and 13,131.60

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Solution

The fourth proportional to 25,573.20, 38,359.80 and 13,131.60 is: 19,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,573.20 : 38,359.80 = 13,131.60 : x
  2. Step 2: Convert to fraction form
    25,573.20/38,359.80 = 13,131.60/x
  3. Step 3: Cross multiply
    25,573.20x = 38,359.80 × 13,131.60
  4. Step 4: Simplify right side
    25,573.20x = 503,725,549.68
  5. Step 5: Solve for x
    x = 503,725,549.68/25,573.20
  6. Step 6: Final answer
    x = 19,697.40

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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.