Home / 19,655.85-27,127.24-12,100.67

Finding the Fourth Proportional to 19,655.85, 27,127.24 and 12,100.67

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Solution

The fourth proportional to 19,655.85, 27,127.24 and 12,100.67 is: 16,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.85 : 27,127.24 = 12,100.67 : x
  2. Step 2: Convert to fraction form
    19,655.85/27,127.24 = 12,100.67/x
  3. Step 3: Cross multiply
    19,655.85x = 27,127.24 × 12,100.67
  4. Step 4: Simplify right side
    19,655.85x = 328,257,613.36
  5. Step 5: Solve for x
    x = 328,257,613.36/19,655.85
  6. Step 6: Final answer
    x = 16,700.25

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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.