Home / 31,285.63-43,173.91-16,945.13

Finding the Fourth Proportional to 31,285.63, 43,173.91 and 16,945.13

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Solution

The fourth proportional to 31,285.63, 43,173.91 and 16,945.13 is: 23,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.63 : 43,173.91 = 16,945.13 : x
  2. Step 2: Convert to fraction form
    31,285.63/43,173.91 = 16,945.13/x
  3. Step 3: Cross multiply
    31,285.63x = 43,173.91 × 16,945.13
  4. Step 4: Simplify right side
    31,285.63x = 731,587,646.67
  5. Step 5: Solve for x
    x = 731,587,646.67/31,285.63
  6. Step 6: Final answer
    x = 23,384.15

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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.