Home / 31,661.17-47,489.29-12,936.22

Finding the Fourth Proportional to 31,661.17, 47,489.29 and 12,936.22

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Solution

The fourth proportional to 31,661.17, 47,489.29 and 12,936.22 is: 19,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.17 : 47,489.29 = 12,936.22 : x
  2. Step 2: Convert to fraction form
    31,661.17/47,489.29 = 12,936.22/x
  3. Step 3: Cross multiply
    31,661.17x = 47,489.29 × 12,936.22
  4. Step 4: Simplify right side
    31,661.17x = 614,331,903.08
  5. Step 5: Solve for x
    x = 614,331,903.08/31,661.17
  6. Step 6: Final answer
    x = 19,403.32

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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.