Home / 31,246.07-43,118.78-18,499.41

Finding the Fourth Proportional to 31,246.07, 43,118.78 and 18,499.41

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Solution

The fourth proportional to 31,246.07, 43,118.78 and 18,499.41 is: 25,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,246.07 : 43,118.78 = 18,499.41 : x
  2. Step 2: Convert to fraction form
    31,246.07/43,118.78 = 18,499.41/x
  3. Step 3: Cross multiply
    31,246.07x = 43,118.78 × 18,499.41
  4. Step 4: Simplify right side
    31,246.07x = 797,671,897.42
  5. Step 5: Solve for x
    x = 797,671,897.42/31,246.07
  6. Step 6: Final answer
    x = 25,528.72

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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.