Home / 31,814.09-47,727.29-12,091.11

Finding the Fourth Proportional to 31,814.09, 47,727.29 and 12,091.11

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Solution

The fourth proportional to 31,814.09, 47,727.29 and 12,091.11 is: 18,139.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.09 : 47,727.29 = 12,091.11 : x
  2. Step 2: Convert to fraction form
    31,814.09/47,727.29 = 12,091.11/x
  3. Step 3: Cross multiply
    31,814.09x = 47,727.29 × 12,091.11
  4. Step 4: Simplify right side
    31,814.09x = 577,075,876.73
  5. Step 5: Solve for x
    x = 577,075,876.73/31,814.09
  6. Step 6: Final answer
    x = 18,139.00

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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.