Home / 28,099.98-38,765.79-16,915.50

Finding the Fourth Proportional to 28,099.98, 38,765.79 and 16,915.50

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Solution

The fourth proportional to 28,099.98, 38,765.79 and 16,915.50 is: 23,336.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.98 : 38,765.79 = 16,915.50 : x
  2. Step 2: Convert to fraction form
    28,099.98/38,765.79 = 16,915.50/x
  3. Step 3: Cross multiply
    28,099.98x = 38,765.79 × 16,915.50
  4. Step 4: Simplify right side
    28,099.98x = 655,742,720.75
  5. Step 5: Solve for x
    x = 655,742,720.75/28,099.98
  6. Step 6: Final answer
    x = 23,336.06

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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.