Home / 31,977.70-44,128.14-17,638.10

Finding the Fourth Proportional to 31,977.70, 44,128.14 and 17,638.10

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Solution

The fourth proportional to 31,977.70, 44,128.14 and 17,638.10 is: 24,339.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.70 : 44,128.14 = 17,638.10 : x
  2. Step 2: Convert to fraction form
    31,977.70/44,128.14 = 17,638.10/x
  3. Step 3: Cross multiply
    31,977.70x = 44,128.14 × 17,638.10
  4. Step 4: Simplify right side
    31,977.70x = 778,336,381.40
  5. Step 5: Solve for x
    x = 778,336,381.40/31,977.70
  6. Step 6: Final answer
    x = 24,339.97

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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.