Home / 30,588.87-45,866.79-9,519.78

Finding the Fourth Proportional to 30,588.87, 45,866.79 and 9,519.78

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Solution

The fourth proportional to 30,588.87, 45,866.79 and 9,519.78 is: 14,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588.87 : 45,866.79 = 9,519.78 : x
  2. Step 2: Convert to fraction form
    30,588.87/45,866.79 = 9,519.78/x
  3. Step 3: Cross multiply
    30,588.87x = 45,866.79 × 9,519.78
  4. Step 4: Simplify right side
    30,588.87x = 436,641,750.11
  5. Step 5: Solve for x
    x = 436,641,750.11/30,588.87
  6. Step 6: Final answer
    x = 14,274.53

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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.