Home / 31,010.34-42,794.43-16,863.19

Finding the Fourth Proportional to 31,010.34, 42,794.43 and 16,863.19

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Solution

The fourth proportional to 31,010.34, 42,794.43 and 16,863.19 is: 23,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,010.34 : 42,794.43 = 16,863.19 : x
  2. Step 2: Convert to fraction form
    31,010.34/42,794.43 = 16,863.19/x
  3. Step 3: Cross multiply
    31,010.34x = 42,794.43 × 16,863.19
  4. Step 4: Simplify right side
    31,010.34x = 721,650,433.81
  5. Step 5: Solve for x
    x = 721,650,433.81/31,010.34
  6. Step 6: Final answer
    x = 23,271.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.