Home / 31,005.48-46,520.64-11,285.40

Finding the Fourth Proportional to 31,005.48, 46,520.64 and 11,285.40

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Solution

The fourth proportional to 31,005.48, 46,520.64 and 11,285.40 is: 16,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,005.48 : 46,520.64 = 11,285.40 : x
  2. Step 2: Convert to fraction form
    31,005.48/46,520.64 = 11,285.40/x
  3. Step 3: Cross multiply
    31,005.48x = 46,520.64 × 11,285.40
  4. Step 4: Simplify right side
    31,005.48x = 525,004,030.66
  5. Step 5: Solve for x
    x = 525,004,030.66/31,005.48
  6. Step 6: Final answer
    x = 16,932.62

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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.