Home / 21,124.09-31,683.70-5,542.93

Finding the Fourth Proportional to 21,124.09, 31,683.70 and 5,542.93

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Solution

The fourth proportional to 21,124.09, 31,683.70 and 5,542.93 is: 8,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.09 : 31,683.70 = 5,542.93 : x
  2. Step 2: Convert to fraction form
    21,124.09/31,683.70 = 5,542.93/x
  3. Step 3: Cross multiply
    21,124.09x = 31,683.70 × 5,542.93
  4. Step 4: Simplify right side
    21,124.09x = 175,620,531.24
  5. Step 5: Solve for x
    x = 175,620,531.24/21,124.09
  6. Step 6: Final answer
    x = 8,313.76

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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.