Home / 25,391.62-35,018.71-15,317.92

Finding the Fourth Proportional to 25,391.62, 35,018.71 and 15,317.92

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Solution

The fourth proportional to 25,391.62, 35,018.71 and 15,317.92 is: 21,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,391.62 : 35,018.71 = 15,317.92 : x
  2. Step 2: Convert to fraction form
    25,391.62/35,018.71 = 15,317.92/x
  3. Step 3: Cross multiply
    25,391.62x = 35,018.71 × 15,317.92
  4. Step 4: Simplify right side
    25,391.62x = 536,413,798.28
  5. Step 5: Solve for x
    x = 536,413,798.28/25,391.62
  6. Step 6: Final answer
    x = 21,125.62

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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.