Home / 31,566.68-43,563.08-18,140.72

Finding the Fourth Proportional to 31,566.68, 43,563.08 and 18,140.72

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Solution

The fourth proportional to 31,566.68, 43,563.08 and 18,140.72 is: 25,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,566.68 : 43,563.08 = 18,140.72 : x
  2. Step 2: Convert to fraction form
    31,566.68/43,563.08 = 18,140.72/x
  3. Step 3: Cross multiply
    31,566.68x = 43,563.08 × 18,140.72
  4. Step 4: Simplify right side
    31,566.68x = 790,265,636.62
  5. Step 5: Solve for x
    x = 790,265,636.62/31,566.68
  6. Step 6: Final answer
    x = 25,034.80

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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.