Home / 21,127.76-31,692.67-17,423.23

Finding the Fourth Proportional to 21,127.76, 31,692.67 and 17,423.23

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Solution

The fourth proportional to 21,127.76, 31,692.67 and 17,423.23 is: 26,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127.76 : 31,692.67 = 17,423.23 : x
  2. Step 2: Convert to fraction form
    21,127.76/31,692.67 = 17,423.23/x
  3. Step 3: Cross multiply
    21,127.76x = 31,692.67 × 17,423.23
  4. Step 4: Simplify right side
    21,127.76x = 552,188,526.22
  5. Step 5: Solve for x
    x = 552,188,526.22/21,127.76
  6. Step 6: Final answer
    x = 26,135.69

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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.