Home / 28,359.12-42,525.60-8,633.28

Finding the Fourth Proportional to 28,359.12, 42,525.60 and 8,633.28

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Solution

The fourth proportional to 28,359.12, 42,525.60 and 8,633.28 is: 12,945.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.12 : 42,525.60 = 8,633.28 : x
  2. Step 2: Convert to fraction form
    28,359.12/42,525.60 = 8,633.28/x
  3. Step 3: Cross multiply
    28,359.12x = 42,525.60 × 8,633.28
  4. Step 4: Simplify right side
    28,359.12x = 367,135,411.97
  5. Step 5: Solve for x
    x = 367,135,411.97/28,359.12
  6. Step 6: Final answer
    x = 12,945.94

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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.