Home / 19,148.10-28,581.81-17,740.90

Finding the Fourth Proportional to 19,148.10, 28,581.81 and 17,740.90

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Solution

The fourth proportional to 19,148.10, 28,581.81 and 17,740.90 is: 26,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.10 : 28,581.81 = 17,740.90 : x
  2. Step 2: Convert to fraction form
    19,148.10/28,581.81 = 17,740.90/x
  3. Step 3: Cross multiply
    19,148.10x = 28,581.81 × 17,740.90
  4. Step 4: Simplify right side
    19,148.10x = 507,067,021.63
  5. Step 5: Solve for x
    x = 507,067,021.63/19,148.10
  6. Step 6: Final answer
    x = 26,481.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.