Home / 19,654.63-27,149.93-15,703.45

Finding the Fourth Proportional to 19,654.63, 27,149.93 and 15,703.45

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Solution

The fourth proportional to 19,654.63, 27,149.93 and 15,703.45 is: 21,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.63 : 27,149.93 = 15,703.45 : x
  2. Step 2: Convert to fraction form
    19,654.63/27,149.93 = 15,703.45/x
  3. Step 3: Cross multiply
    19,654.63x = 27,149.93 × 15,703.45
  4. Step 4: Simplify right side
    19,654.63x = 426,347,489.74
  5. Step 5: Solve for x
    x = 426,347,489.74/19,654.63
  6. Step 6: Final answer
    x = 21,691.96

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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.