Home / 20,840.47-28,773.26-18,598.50

Finding the Fourth Proportional to 20,840.47, 28,773.26 and 18,598.50

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Solution

The fourth proportional to 20,840.47, 28,773.26 and 18,598.50 is: 25,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.47 : 28,773.26 = 18,598.50 : x
  2. Step 2: Convert to fraction form
    20,840.47/28,773.26 = 18,598.50/x
  3. Step 3: Cross multiply
    20,840.47x = 28,773.26 × 18,598.50
  4. Step 4: Simplify right side
    20,840.47x = 535,139,476.11
  5. Step 5: Solve for x
    x = 535,139,476.11/20,840.47
  6. Step 6: Final answer
    x = 25,677.90

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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.