Home / 31,289.76-43,178.94-17,860.68

Finding the Fourth Proportional to 31,289.76, 43,178.94 and 17,860.68

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Solution

The fourth proportional to 31,289.76, 43,178.94 and 17,860.68 is: 24,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.76 : 43,178.94 = 17,860.68 : x
  2. Step 2: Convert to fraction form
    31,289.76/43,178.94 = 17,860.68/x
  3. Step 3: Cross multiply
    31,289.76x = 43,178.94 × 17,860.68
  4. Step 4: Simplify right side
    31,289.76x = 771,205,230.08
  5. Step 5: Solve for x
    x = 771,205,230.08/31,289.76
  6. Step 6: Final answer
    x = 24,647.21

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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.