Home / 18,972.80-28,394.40-17,417.60

Finding the Fourth Proportional to 18,972.80, 28,394.40 and 17,417.60

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Solution

The fourth proportional to 18,972.80, 28,394.40 and 17,417.60 is: 26,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.80 : 28,394.40 = 17,417.60 : x
  2. Step 2: Convert to fraction form
    18,972.80/28,394.40 = 17,417.60/x
  3. Step 3: Cross multiply
    18,972.80x = 28,394.40 × 17,417.60
  4. Step 4: Simplify right side
    18,972.80x = 494,562,301.44
  5. Step 5: Solve for x
    x = 494,562,301.44/18,972.80
  6. Step 6: Final answer
    x = 26,066.91

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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.