Home / 27,087.12-40,606.08-12,287.99

Finding the Fourth Proportional to 27,087.12, 40,606.08 and 12,287.99

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Solution

The fourth proportional to 27,087.12, 40,606.08 and 12,287.99 is: 18,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,087.12 : 40,606.08 = 12,287.99 : x
  2. Step 2: Convert to fraction form
    27,087.12/40,606.08 = 12,287.99/x
  3. Step 3: Cross multiply
    27,087.12x = 40,606.08 × 12,287.99
  4. Step 4: Simplify right side
    27,087.12x = 498,966,901.95
  5. Step 5: Solve for x
    x = 498,966,901.95/27,087.12
  6. Step 6: Final answer
    x = 18,420.82

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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.