Home / 23,920.71-33,011.87-13,310.57

Finding the Fourth Proportional to 23,920.71, 33,011.87 and 13,310.57

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Solution

The fourth proportional to 23,920.71, 33,011.87 and 13,310.57 is: 18,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,920.71 : 33,011.87 = 13,310.57 : x
  2. Step 2: Convert to fraction form
    23,920.71/33,011.87 = 13,310.57/x
  3. Step 3: Cross multiply
    23,920.71x = 33,011.87 × 13,310.57
  4. Step 4: Simplify right side
    23,920.71x = 439,406,574.85
  5. Step 5: Solve for x
    x = 439,406,574.85/23,920.71
  6. Step 6: Final answer
    x = 18,369.30

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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.