Home / 28,359.24-42,538.04-8,636.96

Finding the Fourth Proportional to 28,359.24, 42,538.04 and 8,636.96

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Solution

The fourth proportional to 28,359.24, 42,538.04 and 8,636.96 is: 12,955.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.24 : 42,538.04 = 8,636.96 : x
  2. Step 2: Convert to fraction form
    28,359.24/42,538.04 = 8,636.96/x
  3. Step 3: Cross multiply
    28,359.24x = 42,538.04 × 8,636.96
  4. Step 4: Simplify right side
    28,359.24x = 367,399,349.96
  5. Step 5: Solve for x
    x = 367,399,349.96/28,359.24
  6. Step 6: Final answer
    x = 12,955.19

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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.