Home / 31,755.71-43,828.59-18,325.10

Finding the Fourth Proportional to 31,755.71, 43,828.59 and 18,325.10

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Solution

The fourth proportional to 31,755.71, 43,828.59 and 18,325.10 is: 25,291.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.71 : 43,828.59 = 18,325.10 : x
  2. Step 2: Convert to fraction form
    31,755.71/43,828.59 = 18,325.10/x
  3. Step 3: Cross multiply
    31,755.71x = 43,828.59 × 18,325.10
  4. Step 4: Simplify right side
    31,755.71x = 803,163,472.90
  5. Step 5: Solve for x
    x = 803,163,472.90/31,755.71
  6. Step 6: Final answer
    x = 25,291.94

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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.