Home / 25,018.82-34,525.71-13,688.20

Finding the Fourth Proportional to 25,018.82, 34,525.71 and 13,688.20

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Solution

The fourth proportional to 25,018.82, 34,525.71 and 13,688.20 is: 18,889.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,018.82 : 34,525.71 = 13,688.20 : x
  2. Step 2: Convert to fraction form
    25,018.82/34,525.71 = 13,688.20/x
  3. Step 3: Cross multiply
    25,018.82x = 34,525.71 × 13,688.20
  4. Step 4: Simplify right side
    25,018.82x = 472,594,823.62
  5. Step 5: Solve for x
    x = 472,594,823.62/25,018.82
  6. Step 6: Final answer
    x = 18,889.57

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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.