Home / 25,818.80-38,699.40-11,025.20

Finding the Fourth Proportional to 25,818.80, 38,699.40 and 11,025.20

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Solution

The fourth proportional to 25,818.80, 38,699.40 and 11,025.20 is: 16,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818.80 : 38,699.40 = 11,025.20 : x
  2. Step 2: Convert to fraction form
    25,818.80/38,699.40 = 11,025.20/x
  3. Step 3: Cross multiply
    25,818.80x = 38,699.40 × 11,025.20
  4. Step 4: Simplify right side
    25,818.80x = 426,668,624.88
  5. Step 5: Solve for x
    x = 426,668,624.88/25,818.80
  6. Step 6: Final answer
    x = 16,525.50

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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.