Home / 28,607.55-42,917.51-11,740.60

Finding the Fourth Proportional to 28,607.55, 42,917.51 and 11,740.60

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Solution

The fourth proportional to 28,607.55, 42,917.51 and 11,740.60 is: 17,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.55 : 42,917.51 = 11,740.60 : x
  2. Step 2: Convert to fraction form
    28,607.55/42,917.51 = 11,740.60/x
  3. Step 3: Cross multiply
    28,607.55x = 42,917.51 × 11,740.60
  4. Step 4: Simplify right side
    28,607.55x = 503,877,317.91
  5. Step 5: Solve for x
    x = 503,877,317.91/28,607.55
  6. Step 6: Final answer
    x = 17,613.44

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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.