Home / 20,030.01-27,634.14-15,432.30

Finding the Fourth Proportional to 20,030.01, 27,634.14 and 15,432.30

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Solution

The fourth proportional to 20,030.01, 27,634.14 and 15,432.30 is: 21,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.01 : 27,634.14 = 15,432.30 : x
  2. Step 2: Convert to fraction form
    20,030.01/27,634.14 = 15,432.30/x
  3. Step 3: Cross multiply
    20,030.01x = 27,634.14 × 15,432.30
  4. Step 4: Simplify right side
    20,030.01x = 426,458,338.72
  5. Step 5: Solve for x
    x = 426,458,338.72/20,030.01
  6. Step 6: Final answer
    x = 21,290.97

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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.