Home / 31,748.41-43,814.28-18,319.42

Finding the Fourth Proportional to 31,748.41, 43,814.28 and 18,319.42

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Solution

The fourth proportional to 31,748.41, 43,814.28 and 18,319.42 is: 25,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.41 : 43,814.28 = 18,319.42 : x
  2. Step 2: Convert to fraction form
    31,748.41/43,814.28 = 18,319.42/x
  3. Step 3: Cross multiply
    31,748.41x = 43,814.28 × 18,319.42
  4. Step 4: Simplify right side
    31,748.41x = 802,652,197.32
  5. Step 5: Solve for x
    x = 802,652,197.32/31,748.41
  6. Step 6: Final answer
    x = 25,281.65

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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.