Home / 31,829.13-43,904.74-18,899.64

Finding the Fourth Proportional to 31,829.13, 43,904.74 and 18,899.64

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Solution

The fourth proportional to 31,829.13, 43,904.74 and 18,899.64 is: 26,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,829.13 : 43,904.74 = 18,899.64 : x
  2. Step 2: Convert to fraction form
    31,829.13/43,904.74 = 18,899.64/x
  3. Step 3: Cross multiply
    31,829.13x = 43,904.74 × 18,899.64
  4. Step 4: Simplify right side
    31,829.13x = 829,783,897.69
  5. Step 5: Solve for x
    x = 829,783,897.69/31,829.13
  6. Step 6: Final answer
    x = 26,069.95

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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.