Home / 25,770.48-38,656.40-8,240.30

Finding the Fourth Proportional to 25,770.48, 38,656.40 and 8,240.30

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Solution

The fourth proportional to 25,770.48, 38,656.40 and 8,240.30 is: 12,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,770.48 : 38,656.40 = 8,240.30 : x
  2. Step 2: Convert to fraction form
    25,770.48/38,656.40 = 8,240.30/x
  3. Step 3: Cross multiply
    25,770.48x = 38,656.40 × 8,240.30
  4. Step 4: Simplify right side
    25,770.48x = 318,540,332.92
  5. Step 5: Solve for x
    x = 318,540,332.92/25,770.48
  6. Step 6: Final answer
    x = 12,360.67

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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.