Home / 19,319.22-28,931.31-9,426.60

Finding the Fourth Proportional to 19,319.22, 28,931.31 and 9,426.60

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Solution

The fourth proportional to 19,319.22, 28,931.31 and 9,426.60 is: 14,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.22 : 28,931.31 = 9,426.60 : x
  2. Step 2: Convert to fraction form
    19,319.22/28,931.31 = 9,426.60/x
  3. Step 3: Cross multiply
    19,319.22x = 28,931.31 × 9,426.60
  4. Step 4: Simplify right side
    19,319.22x = 272,723,886.85
  5. Step 5: Solve for x
    x = 272,723,886.85/19,319.22
  6. Step 6: Final answer
    x = 14,116.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.