Home / 19,715.42-27,203.20-11,330.30

Finding the Fourth Proportional to 19,715.42, 27,203.20 and 11,330.30

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Solution

The fourth proportional to 19,715.42, 27,203.20 and 11,330.30 is: 15,633.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.42 : 27,203.20 = 11,330.30 : x
  2. Step 2: Convert to fraction form
    19,715.42/27,203.20 = 11,330.30/x
  3. Step 3: Cross multiply
    19,715.42x = 27,203.20 × 11,330.30
  4. Step 4: Simplify right side
    19,715.42x = 308,220,416.96
  5. Step 5: Solve for x
    x = 308,220,416.96/19,715.42
  6. Step 6: Final answer
    x = 15,633.47

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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.