Home / 31,403.13-43,336.34-17,256.07

Finding the Fourth Proportional to 31,403.13, 43,336.34 and 17,256.07

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Solution

The fourth proportional to 31,403.13, 43,336.34 and 17,256.07 is: 23,813.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,403.13 : 43,336.34 = 17,256.07 : x
  2. Step 2: Convert to fraction form
    31,403.13/43,336.34 = 17,256.07/x
  3. Step 3: Cross multiply
    31,403.13x = 43,336.34 × 17,256.07
  4. Step 4: Simplify right side
    31,403.13x = 747,814,916.58
  5. Step 5: Solve for x
    x = 747,814,916.58/31,403.13
  6. Step 6: Final answer
    x = 23,813.39

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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.