Home / 28,336.55-42,502.10-8,615.30

Finding the Fourth Proportional to 28,336.55, 42,502.10 and 8,615.30

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Solution

The fourth proportional to 28,336.55, 42,502.10 and 8,615.30 is: 12,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.55 : 42,502.10 = 8,615.30 : x
  2. Step 2: Convert to fraction form
    28,336.55/42,502.10 = 8,615.30/x
  3. Step 3: Cross multiply
    28,336.55x = 42,502.10 × 8,615.30
  4. Step 4: Simplify right side
    28,336.55x = 366,168,086.54
  5. Step 5: Solve for x
    x = 366,168,086.54/28,336.55
  6. Step 6: Final answer
    x = 12,922.11

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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.