Home / 31,428.41-47,141.19-9,242.51

Finding the Fourth Proportional to 31,428.41, 47,141.19 and 9,242.51

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Solution

The fourth proportional to 31,428.41, 47,141.19 and 9,242.51 is: 13,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.41 : 47,141.19 = 9,242.51 : x
  2. Step 2: Convert to fraction form
    31,428.41/47,141.19 = 9,242.51/x
  3. Step 3: Cross multiply
    31,428.41x = 47,141.19 × 9,242.51
  4. Step 4: Simplify right side
    31,428.41x = 435,702,684.28
  5. Step 5: Solve for x
    x = 435,702,684.28/31,428.41
  6. Step 6: Final answer
    x = 13,863.34

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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.