Home / 20,059.25-27,681.40-11,106.72

Finding the Fourth Proportional to 20,059.25, 27,681.40 and 11,106.72

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Solution

The fourth proportional to 20,059.25, 27,681.40 and 11,106.72 is: 15,327.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.25 : 27,681.40 = 11,106.72 : x
  2. Step 2: Convert to fraction form
    20,059.25/27,681.40 = 11,106.72/x
  3. Step 3: Cross multiply
    20,059.25x = 27,681.40 × 11,106.72
  4. Step 4: Simplify right side
    20,059.25x = 307,449,510.42
  5. Step 5: Solve for x
    x = 307,449,510.42/20,059.25
  6. Step 6: Final answer
    x = 15,327.07

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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.