Home / 25,866-38,806.92-17,976.60

Finding the Fourth Proportional to 25,866, 38,806.92 and 17,976.60

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Solution

The fourth proportional to 25,866, 38,806.92 and 17,976.60 is: 26,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,866 : 38,806.92 = 17,976.60 : x
  2. Step 2: Convert to fraction form
    25,866/38,806.92 = 17,976.60/x
  3. Step 3: Cross multiply
    25,866x = 38,806.92 × 17,976.60
  4. Step 4: Simplify right side
    25,866x = 697,616,478.07
  5. Step 5: Solve for x
    x = 697,616,478.07/25,866
  6. Step 6: Final answer
    x = 26,970.40

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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.