Home / 21,167.79-31,751.94-14,592.21

Finding the Fourth Proportional to 21,167.79, 31,751.94 and 14,592.21

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Solution

The fourth proportional to 21,167.79, 31,751.94 and 14,592.21 is: 21,888.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.79 : 31,751.94 = 14,592.21 : x
  2. Step 2: Convert to fraction form
    21,167.79/31,751.94 = 14,592.21/x
  3. Step 3: Cross multiply
    21,167.79x = 31,751.94 × 14,592.21
  4. Step 4: Simplify right side
    21,167.79x = 463,330,976.39
  5. Step 5: Solve for x
    x = 463,330,976.39/21,167.79
  6. Step 6: Final answer
    x = 21,888.49

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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.