Home / 25,015.45-34,521.36-13,684.99

Finding the Fourth Proportional to 25,015.45, 34,521.36 and 13,684.99

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Solution

The fourth proportional to 25,015.45, 34,521.36 and 13,684.99 is: 18,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,015.45 : 34,521.36 = 13,684.99 : x
  2. Step 2: Convert to fraction form
    25,015.45/34,521.36 = 13,684.99/x
  3. Step 3: Cross multiply
    25,015.45x = 34,521.36 × 13,684.99
  4. Step 4: Simplify right side
    25,015.45x = 472,424,466.39
  5. Step 5: Solve for x
    x = 472,424,466.39/25,015.45
  6. Step 6: Final answer
    x = 18,885.31

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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.