Home / 20,840.91-28,773.87-18,598.93

Finding the Fourth Proportional to 20,840.91, 28,773.87 and 18,598.93

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Solution

The fourth proportional to 20,840.91, 28,773.87 and 18,598.93 is: 25,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.91 : 28,773.87 = 18,598.93 : x
  2. Step 2: Convert to fraction form
    20,840.91/28,773.87 = 18,598.93/x
  3. Step 3: Cross multiply
    20,840.91x = 28,773.87 × 18,598.93
  4. Step 4: Simplify right side
    20,840.91x = 535,163,193.96
  5. Step 5: Solve for x
    x = 535,163,193.96/20,840.91
  6. Step 6: Final answer
    x = 25,678.49

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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.