Home / 20,261.18-30,402.47-14,376.09

Finding the Fourth Proportional to 20,261.18, 30,402.47 and 14,376.09

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Solution

The fourth proportional to 20,261.18, 30,402.47 and 14,376.09 is: 21,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.18 : 30,402.47 = 14,376.09 : x
  2. Step 2: Convert to fraction form
    20,261.18/30,402.47 = 14,376.09/x
  3. Step 3: Cross multiply
    20,261.18x = 30,402.47 × 14,376.09
  4. Step 4: Simplify right side
    20,261.18x = 437,068,649.07
  5. Step 5: Solve for x
    x = 437,068,649.07/20,261.18
  6. Step 6: Final answer
    x = 21,571.73

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1.5x scale

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.