Home / 21,221.46-29,273.04-14,503.68

Finding the Fourth Proportional to 21,221.46, 29,273.04 and 14,503.68

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Solution

The fourth proportional to 21,221.46, 29,273.04 and 14,503.68 is: 20,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221.46 : 29,273.04 = 14,503.68 : x
  2. Step 2: Convert to fraction form
    21,221.46/29,273.04 = 14,503.68/x
  3. Step 3: Cross multiply
    21,221.46x = 29,273.04 × 14,503.68
  4. Step 4: Simplify right side
    21,221.46x = 424,566,804.79
  5. Step 5: Solve for x
    x = 424,566,804.79/21,221.46
  6. Step 6: Final answer
    x = 20,006.48

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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.