Home / 27,985.50-38,620.26-15,410.52

Finding the Fourth Proportional to 27,985.50, 38,620.26 and 15,410.52

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Solution

The fourth proportional to 27,985.50, 38,620.26 and 15,410.52 is: 21,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.50 : 38,620.26 = 15,410.52 : x
  2. Step 2: Convert to fraction form
    27,985.50/38,620.26 = 15,410.52/x
  3. Step 3: Cross multiply
    27,985.50x = 38,620.26 × 15,410.52
  4. Step 4: Simplify right side
    27,985.50x = 595,158,289.14
  5. Step 5: Solve for x
    x = 595,158,289.14/27,985.50
  6. Step 6: Final answer
    x = 21,266.67

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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.