Home / 31,189.83-46,784.95-12,471.44

Finding the Fourth Proportional to 31,189.83, 46,784.95 and 12,471.44

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Solution

The fourth proportional to 31,189.83, 46,784.95 and 12,471.44 is: 18,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.83 : 46,784.95 = 12,471.44 : x
  2. Step 2: Convert to fraction form
    31,189.83/46,784.95 = 12,471.44/x
  3. Step 3: Cross multiply
    31,189.83x = 46,784.95 × 12,471.44
  4. Step 4: Simplify right side
    31,189.83x = 583,475,607.17
  5. Step 5: Solve for x
    x = 583,475,607.17/31,189.83
  6. Step 6: Final answer
    x = 18,707.24

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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.