Home / 19,240-28,711.12-17,166.40

Finding the Fourth Proportional to 19,240, 28,711.12 and 17,166.40

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Solution

The fourth proportional to 19,240, 28,711.12 and 17,166.40 is: 25,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240 : 28,711.12 = 17,166.40 : x
  2. Step 2: Convert to fraction form
    19,240/28,711.12 = 17,166.40/x
  3. Step 3: Cross multiply
    19,240x = 28,711.12 × 17,166.40
  4. Step 4: Simplify right side
    19,240x = 492,866,570.37
  5. Step 5: Solve for x
    x = 492,866,570.37/19,240
  6. Step 6: Final answer
    x = 25,616.77

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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.