Home / 25,475.48-38,219.82-9,680.78

Finding the Fourth Proportional to 25,475.48, 38,219.82 and 9,680.78

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Solution

The fourth proportional to 25,475.48, 38,219.82 and 9,680.78 is: 14,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,475.48 : 38,219.82 = 9,680.78 : x
  2. Step 2: Convert to fraction form
    25,475.48/38,219.82 = 9,680.78/x
  3. Step 3: Cross multiply
    25,475.48x = 38,219.82 × 9,680.78
  4. Step 4: Simplify right side
    25,475.48x = 369,997,477.96
  5. Step 5: Solve for x
    x = 369,997,477.96/25,475.48
  6. Step 6: Final answer
    x = 14,523.67

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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.