Home / 28,700.92-39,606-16,765.36

Finding the Fourth Proportional to 28,700.92, 39,606 and 16,765.36

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Solution

The fourth proportional to 28,700.92, 39,606 and 16,765.36 is: 23,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.92 : 39,606 = 16,765.36 : x
  2. Step 2: Convert to fraction form
    28,700.92/39,606 = 16,765.36/x
  3. Step 3: Cross multiply
    28,700.92x = 39,606 × 16,765.36
  4. Step 4: Simplify right side
    28,700.92x = 664,008,848.16
  5. Step 5: Solve for x
    x = 664,008,848.16/28,700.92
  6. Step 6: Final answer
    x = 23,135.46

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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.