Home / 20,270.86-30,406.29-14,759.28

Finding the Fourth Proportional to 20,270.86, 30,406.29 and 14,759.28

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Solution

The fourth proportional to 20,270.86, 30,406.29 and 14,759.28 is: 22,138.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.86 : 30,406.29 = 14,759.28 : x
  2. Step 2: Convert to fraction form
    20,270.86/30,406.29 = 14,759.28/x
  3. Step 3: Cross multiply
    20,270.86x = 30,406.29 × 14,759.28
  4. Step 4: Simplify right side
    20,270.86x = 448,774,892.52
  5. Step 5: Solve for x
    x = 448,774,892.52/20,270.86
  6. Step 6: Final answer
    x = 22,138.92

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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.