Home / 19,985.68-27,602.52-15,562.64

Finding the Fourth Proportional to 19,985.68, 27,602.52 and 15,562.64

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Solution

The fourth proportional to 19,985.68, 27,602.52 and 15,562.64 is: 21,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.68 : 27,602.52 = 15,562.64 : x
  2. Step 2: Convert to fraction form
    19,985.68/27,602.52 = 15,562.64/x
  3. Step 3: Cross multiply
    19,985.68x = 27,602.52 × 15,562.64
  4. Step 4: Simplify right side
    19,985.68x = 429,568,081.85
  5. Step 5: Solve for x
    x = 429,568,081.85/19,985.68
  6. Step 6: Final answer
    x = 21,493.79

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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.