Home / 31,118.19-46,647.77-12,409.76

Finding the Fourth Proportional to 31,118.19, 46,647.77 and 12,409.76

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Solution

The fourth proportional to 31,118.19, 46,647.77 and 12,409.76 is: 18,602.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,118.19 : 46,647.77 = 12,409.76 : x
  2. Step 2: Convert to fraction form
    31,118.19/46,647.77 = 12,409.76/x
  3. Step 3: Cross multiply
    31,118.19x = 46,647.77 × 12,409.76
  4. Step 4: Simplify right side
    31,118.19x = 578,887,334.95
  5. Step 5: Solve for x
    x = 578,887,334.95/31,118.19
  6. Step 6: Final answer
    x = 18,602.86

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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.