Home / 19,930.14-27,503.63-10,977.67

Finding the Fourth Proportional to 19,930.14, 27,503.63 and 10,977.67

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Solution

The fourth proportional to 19,930.14, 27,503.63 and 10,977.67 is: 15,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.14 : 27,503.63 = 10,977.67 : x
  2. Step 2: Convert to fraction form
    19,930.14/27,503.63 = 10,977.67/x
  3. Step 3: Cross multiply
    19,930.14x = 27,503.63 × 10,977.67
  4. Step 4: Simplify right side
    19,930.14x = 301,925,650.29
  5. Step 5: Solve for x
    x = 301,925,650.29/19,930.14
  6. Step 6: Final answer
    x = 15,149.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.