Home / 31,161.40-46,742.17-12,442.96

Finding the Fourth Proportional to 31,161.40, 46,742.17 and 12,442.96

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Solution

The fourth proportional to 31,161.40, 46,742.17 and 12,442.96 is: 18,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.40 : 46,742.17 = 12,442.96 : x
  2. Step 2: Convert to fraction form
    31,161.40/46,742.17 = 12,442.96/x
  3. Step 3: Cross multiply
    31,161.40x = 46,742.17 × 12,442.96
  4. Step 4: Simplify right side
    31,161.40x = 581,610,717.91
  5. Step 5: Solve for x
    x = 581,610,717.91/31,161.40
  6. Step 6: Final answer
    x = 18,664.46

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1.5x scale

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.