Home / 31,457.41-43,394.69-18,701.52

Finding the Fourth Proportional to 31,457.41, 43,394.69 and 18,701.52

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Solution

The fourth proportional to 31,457.41, 43,394.69 and 18,701.52 is: 25,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.41 : 43,394.69 = 18,701.52 : x
  2. Step 2: Convert to fraction form
    31,457.41/43,394.69 = 18,701.52/x
  3. Step 3: Cross multiply
    31,457.41x = 43,394.69 × 18,701.52
  4. Step 4: Simplify right side
    31,457.41x = 811,546,662.93
  5. Step 5: Solve for x
    x = 811,546,662.93/31,457.41
  6. Step 6: Final answer
    x = 25,798.27

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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.