Home / 28,349.04-42,529.56-8,628.96

Finding the Fourth Proportional to 28,349.04, 42,529.56 and 8,628.96

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Solution

The fourth proportional to 28,349.04, 42,529.56 and 8,628.96 is: 12,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.04 : 42,529.56 = 8,628.96 : x
  2. Step 2: Convert to fraction form
    28,349.04/42,529.56 = 8,628.96/x
  3. Step 3: Cross multiply
    28,349.04x = 42,529.56 × 8,628.96
  4. Step 4: Simplify right side
    28,349.04x = 366,985,872.06
  5. Step 5: Solve for x
    x = 366,985,872.06/28,349.04
  6. Step 6: Final answer
    x = 12,945.27

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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.