Home / 20,470.86-28,232.82-14,440.82

Finding the Fourth Proportional to 20,470.86, 28,232.82 and 14,440.82

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Solution

The fourth proportional to 20,470.86, 28,232.82 and 14,440.82 is: 19,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470.86 : 28,232.82 = 14,440.82 : x
  2. Step 2: Convert to fraction form
    20,470.86/28,232.82 = 14,440.82/x
  3. Step 3: Cross multiply
    20,470.86x = 28,232.82 × 14,440.82
  4. Step 4: Simplify right side
    20,470.86x = 407,704,930.55
  5. Step 5: Solve for x
    x = 407,704,930.55/20,470.86
  6. Step 6: Final answer
    x = 19,916.36

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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.