Home / 19,811.22-27,339.70-10,858.53

Finding the Fourth Proportional to 19,811.22, 27,339.70 and 10,858.53

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Solution

The fourth proportional to 19,811.22, 27,339.70 and 10,858.53 is: 14,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.22 : 27,339.70 = 10,858.53 : x
  2. Step 2: Convert to fraction form
    19,811.22/27,339.70 = 10,858.53/x
  3. Step 3: Cross multiply
    19,811.22x = 27,339.70 × 10,858.53
  4. Step 4: Simplify right side
    19,811.22x = 296,868,952.64
  5. Step 5: Solve for x
    x = 296,868,952.64/19,811.22
  6. Step 6: Final answer
    x = 14,984.89

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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.