Home / 31,288.74-46,933.41-12,315.30

Finding the Fourth Proportional to 31,288.74, 46,933.41 and 12,315.30

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Solution

The fourth proportional to 31,288.74, 46,933.41 and 12,315.30 is: 18,473.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.74 : 46,933.41 = 12,315.30 : x
  2. Step 2: Convert to fraction form
    31,288.74/46,933.41 = 12,315.30/x
  3. Step 3: Cross multiply
    31,288.74x = 46,933.41 × 12,315.30
  4. Step 4: Simplify right side
    31,288.74x = 577,999,024.17
  5. Step 5: Solve for x
    x = 577,999,024.17/31,288.74
  6. Step 6: Final answer
    x = 18,473.07

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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.