Home / 27,083.04-40,619.58-12,288.40

Finding the Fourth Proportional to 27,083.04, 40,619.58 and 12,288.40

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Solution

The fourth proportional to 27,083.04, 40,619.58 and 12,288.40 is: 18,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,083.04 : 40,619.58 = 12,288.40 : x
  2. Step 2: Convert to fraction form
    27,083.04/40,619.58 = 12,288.40/x
  3. Step 3: Cross multiply
    27,083.04x = 40,619.58 × 12,288.40
  4. Step 4: Simplify right side
    27,083.04x = 499,149,646.87
  5. Step 5: Solve for x
    x = 499,149,646.87/27,083.04
  6. Step 6: Final answer
    x = 18,430.34

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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.