Home / 18,660.87-28,001.03-17,585.19

Finding the Fourth Proportional to 18,660.87, 28,001.03 and 17,585.19

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Solution

The fourth proportional to 18,660.87, 28,001.03 and 17,585.19 is: 26,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.87 : 28,001.03 = 17,585.19 : x
  2. Step 2: Convert to fraction form
    18,660.87/28,001.03 = 17,585.19/x
  3. Step 3: Cross multiply
    18,660.87x = 28,001.03 × 17,585.19
  4. Step 4: Simplify right side
    18,660.87x = 492,403,344.82
  5. Step 5: Solve for x
    x = 492,403,344.82/18,660.87
  6. Step 6: Final answer
    x = 26,386.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.