Home / 31,242.09-46,804.28-15,428.61

Finding the Fourth Proportional to 31,242.09, 46,804.28 and 15,428.61

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Solution

The fourth proportional to 31,242.09, 46,804.28 and 15,428.61 is: 23,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,242.09 : 46,804.28 = 15,428.61 : x
  2. Step 2: Convert to fraction form
    31,242.09/46,804.28 = 15,428.61/x
  3. Step 3: Cross multiply
    31,242.09x = 46,804.28 × 15,428.61
  4. Step 4: Simplify right side
    31,242.09x = 722,124,905.31
  5. Step 5: Solve for x
    x = 722,124,905.31/31,242.09
  6. Step 6: Final answer
    x = 23,113.85

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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.