Home / 19,811.10-27,339.15-10,858.42

Finding the Fourth Proportional to 19,811.10, 27,339.15 and 10,858.42

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Solution

The fourth proportional to 19,811.10, 27,339.15 and 10,858.42 is: 14,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.10 : 27,339.15 = 10,858.42 : x
  2. Step 2: Convert to fraction form
    19,811.10/27,339.15 = 10,858.42/x
  3. Step 3: Cross multiply
    19,811.10x = 27,339.15 × 10,858.42
  4. Step 4: Simplify right side
    19,811.10x = 296,859,973.14
  5. Step 5: Solve for x
    x = 296,859,973.14/19,811.10
  6. Step 6: Final answer
    x = 14,984.53

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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.