Home / 28,290.30-39,041.88-16,961.64

Finding the Fourth Proportional to 28,290.30, 39,041.88 and 16,961.64

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Solution

The fourth proportional to 28,290.30, 39,041.88 and 16,961.64 is: 23,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.30 : 39,041.88 = 16,961.64 : x
  2. Step 2: Convert to fraction form
    28,290.30/39,041.88 = 16,961.64/x
  3. Step 3: Cross multiply
    28,290.30x = 39,041.88 × 16,961.64
  4. Step 4: Simplify right side
    28,290.30x = 662,214,313.48
  5. Step 5: Solve for x
    x = 662,214,313.48/28,290.30
  6. Step 6: Final answer
    x = 23,407.82

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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.