Home / 19,539.40-26,976.60-15,054.64

Finding the Fourth Proportional to 19,539.40, 26,976.60 and 15,054.64

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Solution

The fourth proportional to 19,539.40, 26,976.60 and 15,054.64 is: 20,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.40 : 26,976.60 = 15,054.64 : x
  2. Step 2: Convert to fraction form
    19,539.40/26,976.60 = 15,054.64/x
  3. Step 3: Cross multiply
    19,539.40x = 26,976.60 × 15,054.64
  4. Step 4: Simplify right side
    19,539.40x = 406,123,001.42
  5. Step 5: Solve for x
    x = 406,123,001.42/19,539.40
  6. Step 6: Final answer
    x = 20,784.82

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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.