Home / 25,459.58-35,156.54-15,915.78

Finding the Fourth Proportional to 25,459.58, 35,156.54 and 15,915.78

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Solution

The fourth proportional to 25,459.58, 35,156.54 and 15,915.78 is: 21,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.58 : 35,156.54 = 15,915.78 : x
  2. Step 2: Convert to fraction form
    25,459.58/35,156.54 = 15,915.78/x
  3. Step 3: Cross multiply
    25,459.58x = 35,156.54 × 15,915.78
  4. Step 4: Simplify right side
    25,459.58x = 559,543,676.62
  5. Step 5: Solve for x
    x = 559,543,676.62/25,459.58
  6. Step 6: Final answer
    x = 21,977.73

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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.