Home / 25,417.72-38,103.82-12,930.76

Finding the Fourth Proportional to 25,417.72, 38,103.82 and 12,930.76

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Solution

The fourth proportional to 25,417.72, 38,103.82 and 12,930.76 is: 19,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,417.72 : 38,103.82 = 12,930.76 : x
  2. Step 2: Convert to fraction form
    25,417.72/38,103.82 = 12,930.76/x
  3. Step 3: Cross multiply
    25,417.72x = 38,103.82 × 12,930.76
  4. Step 4: Simplify right side
    25,417.72x = 492,711,351.50
  5. Step 5: Solve for x
    x = 492,711,351.50/25,417.72
  6. Step 6: Final answer
    x = 19,384.56

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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.