Home / 19,542.40-26,980.74-15,057.64

Finding the Fourth Proportional to 19,542.40, 26,980.74 and 15,057.64

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Solution

The fourth proportional to 19,542.40, 26,980.74 and 15,057.64 is: 20,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,542.40 : 26,980.74 = 15,057.64 : x
  2. Step 2: Convert to fraction form
    19,542.40/26,980.74 = 15,057.64/x
  3. Step 3: Cross multiply
    19,542.40x = 26,980.74 × 15,057.64
  4. Step 4: Simplify right side
    19,542.40x = 406,266,269.85
  5. Step 5: Solve for x
    x = 406,266,269.85/19,542.40
  6. Step 6: Final answer
    x = 20,788.97

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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.