Home / 21,333.69-31,999.33-6,542.57

Finding the Fourth Proportional to 21,333.69, 31,999.33 and 6,542.57

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Solution

The fourth proportional to 21,333.69, 31,999.33 and 6,542.57 is: 9,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.69 : 31,999.33 = 6,542.57 : x
  2. Step 2: Convert to fraction form
    21,333.69/31,999.33 = 6,542.57/x
  3. Step 3: Cross multiply
    21,333.69x = 31,999.33 × 6,542.57
  4. Step 4: Simplify right side
    21,333.69x = 209,357,712.84
  5. Step 5: Solve for x
    x = 209,357,712.84/21,333.69
  6. Step 6: Final answer
    x = 9,813.48

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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.