Home / 31,161.90-46,742.93-12,443.46

Finding the Fourth Proportional to 31,161.90, 46,742.93 and 12,443.46

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Solution

The fourth proportional to 31,161.90, 46,742.93 and 12,443.46 is: 18,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.90 : 46,742.93 = 12,443.46 : x
  2. Step 2: Convert to fraction form
    31,161.90/46,742.93 = 12,443.46/x
  3. Step 3: Cross multiply
    31,161.90x = 46,742.93 × 12,443.46
  4. Step 4: Simplify right side
    31,161.90x = 581,643,717.52
  5. Step 5: Solve for x
    x = 581,643,717.52/31,161.90
  6. Step 6: Final answer
    x = 18,665.22

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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.