Home / 31,276.63-43,161.74-17,129.98

Finding the Fourth Proportional to 31,276.63, 43,161.74 and 17,129.98

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Solution

The fourth proportional to 31,276.63, 43,161.74 and 17,129.98 is: 23,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,276.63 : 43,161.74 = 17,129.98 : x
  2. Step 2: Convert to fraction form
    31,276.63/43,161.74 = 17,129.98/x
  3. Step 3: Cross multiply
    31,276.63x = 43,161.74 × 17,129.98
  4. Step 4: Simplify right side
    31,276.63x = 739,359,569.98
  5. Step 5: Solve for x
    x = 739,359,569.98/31,276.63
  6. Step 6: Final answer
    x = 23,639.37

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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.