Home / 31,861.26-43,955.91-18,430.02

Finding the Fourth Proportional to 31,861.26, 43,955.91 and 18,430.02

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Solution

The fourth proportional to 31,861.26, 43,955.91 and 18,430.02 is: 25,426.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,861.26 : 43,955.91 = 18,430.02 : x
  2. Step 2: Convert to fraction form
    31,861.26/43,955.91 = 18,430.02/x
  3. Step 3: Cross multiply
    31,861.26x = 43,955.91 × 18,430.02
  4. Step 4: Simplify right side
    31,861.26x = 810,108,300.42
  5. Step 5: Solve for x
    x = 810,108,300.42/31,861.26
  6. Step 6: Final answer
    x = 25,426.12

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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.