Home / 28,349.80-42,524.70-7,289.80

Finding the Fourth Proportional to 28,349.80, 42,524.70 and 7,289.80

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Solution

The fourth proportional to 28,349.80, 42,524.70 and 7,289.80 is: 10,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.80 : 42,524.70 = 7,289.80 : x
  2. Step 2: Convert to fraction form
    28,349.80/42,524.70 = 7,289.80/x
  3. Step 3: Cross multiply
    28,349.80x = 42,524.70 × 7,289.80
  4. Step 4: Simplify right side
    28,349.80x = 309,996,558.06
  5. Step 5: Solve for x
    x = 309,996,558.06/28,349.80
  6. Step 6: Final answer
    x = 10,934.70

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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.