Home / 31,139.01-46,679.77-12,414.52

Finding the Fourth Proportional to 31,139.01, 46,679.77 and 12,414.52

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Solution

The fourth proportional to 31,139.01, 46,679.77 and 12,414.52 is: 18,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139.01 : 46,679.77 = 12,414.52 : x
  2. Step 2: Convert to fraction form
    31,139.01/46,679.77 = 12,414.52/x
  3. Step 3: Cross multiply
    31,139.01x = 46,679.77 × 12,414.52
  4. Step 4: Simplify right side
    31,139.01x = 579,506,714.64
  5. Step 5: Solve for x
    x = 579,506,714.64/31,139.01
  6. Step 6: Final answer
    x = 18,610.31

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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.