Home / 27,146.88-40,720.35-7,423.98

Finding the Fourth Proportional to 27,146.88, 40,720.35 and 7,423.98

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Solution

The fourth proportional to 27,146.88, 40,720.35 and 7,423.98 is: 11,135.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,146.88 : 40,720.35 = 7,423.98 : x
  2. Step 2: Convert to fraction form
    27,146.88/40,720.35 = 7,423.98/x
  3. Step 3: Cross multiply
    27,146.88x = 40,720.35 × 7,423.98
  4. Step 4: Simplify right side
    27,146.88x = 302,307,063.99
  5. Step 5: Solve for x
    x = 302,307,063.99/27,146.88
  6. Step 6: Final answer
    x = 11,135.98

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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.