Home / 31,813.20-43,903.08-17,665.20

Finding the Fourth Proportional to 31,813.20, 43,903.08 and 17,665.20

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Solution

The fourth proportional to 31,813.20, 43,903.08 and 17,665.20 is: 24,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,813.20 : 43,903.08 = 17,665.20 : x
  2. Step 2: Convert to fraction form
    31,813.20/43,903.08 = 17,665.20/x
  3. Step 3: Cross multiply
    31,813.20x = 43,903.08 × 17,665.20
  4. Step 4: Simplify right side
    31,813.20x = 775,556,688.82
  5. Step 5: Solve for x
    x = 775,556,688.82/31,813.20
  6. Step 6: Final answer
    x = 24,378.46

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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.