Home / 31,215.70-46,823.55-18,101.80

Finding the Fourth Proportional to 31,215.70, 46,823.55 and 18,101.80

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Solution

The fourth proportional to 31,215.70, 46,823.55 and 18,101.80 is: 27,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.70 : 46,823.55 = 18,101.80 : x
  2. Step 2: Convert to fraction form
    31,215.70/46,823.55 = 18,101.80/x
  3. Step 3: Cross multiply
    31,215.70x = 46,823.55 × 18,101.80
  4. Step 4: Simplify right side
    31,215.70x = 847,590,537.39
  5. Step 5: Solve for x
    x = 847,590,537.39/31,215.70
  6. Step 6: Final answer
    x = 27,152.70

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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.