Home / 25,365.45-34,982.84-15,291.68

Finding the Fourth Proportional to 25,365.45, 34,982.84 and 15,291.68

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Solution

The fourth proportional to 25,365.45, 34,982.84 and 15,291.68 is: 21,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,365.45 : 34,982.84 = 15,291.68 : x
  2. Step 2: Convert to fraction form
    25,365.45/34,982.84 = 15,291.68/x
  3. Step 3: Cross multiply
    25,365.45x = 34,982.84 × 15,291.68
  4. Step 4: Simplify right side
    25,365.45x = 534,946,394.77
  5. Step 5: Solve for x
    x = 534,946,394.77/25,365.45
  6. Step 6: Final answer
    x = 21,089.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.