Home / 21,104.94-31,677.77-15,542.67

Finding the Fourth Proportional to 21,104.94, 31,677.77 and 15,542.67

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Solution

The fourth proportional to 21,104.94, 31,677.77 and 15,542.67 is: 23,329.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.94 : 31,677.77 = 15,542.67 : x
  2. Step 2: Convert to fraction form
    21,104.94/31,677.77 = 15,542.67/x
  3. Step 3: Cross multiply
    21,104.94x = 31,677.77 × 15,542.67
  4. Step 4: Simplify right side
    21,104.94x = 492,357,125.45
  5. Step 5: Solve for x
    x = 492,357,125.45/21,104.94
  6. Step 6: Final answer
    x = 23,329.00

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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.