Home / 26,915.12-40,355.40-18,571.76

Finding the Fourth Proportional to 26,915.12, 40,355.40 and 18,571.76

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Solution

The fourth proportional to 26,915.12, 40,355.40 and 18,571.76 is: 27,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.12 : 40,355.40 = 18,571.76 : x
  2. Step 2: Convert to fraction form
    26,915.12/40,355.40 = 18,571.76/x
  3. Step 3: Cross multiply
    26,915.12x = 40,355.40 × 18,571.76
  4. Step 4: Simplify right side
    26,915.12x = 749,470,803.50
  5. Step 5: Solve for x
    x = 749,470,803.50/26,915.12
  6. Step 6: Final answer
    x = 27,845.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.