Home / 26,025.87-35,915.49-15,420.54

Finding the Fourth Proportional to 26,025.87, 35,915.49 and 15,420.54

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Solution

The fourth proportional to 26,025.87, 35,915.49 and 15,420.54 is: 21,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,025.87 : 35,915.49 = 15,420.54 : x
  2. Step 2: Convert to fraction form
    26,025.87/35,915.49 = 15,420.54/x
  3. Step 3: Cross multiply
    26,025.87x = 35,915.49 × 15,420.54
  4. Step 4: Simplify right side
    26,025.87x = 553,836,250.16
  5. Step 5: Solve for x
    x = 553,836,250.16/26,025.87
  6. Step 6: Final answer
    x = 21,280.22

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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.