Home / 21,126.84-31,692.18-6,335.16

Finding the Fourth Proportional to 21,126.84, 31,692.18 and 6,335.16

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Solution

The fourth proportional to 21,126.84, 31,692.18 and 6,335.16 is: 9,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.84 : 31,692.18 = 6,335.16 : x
  2. Step 2: Convert to fraction form
    21,126.84/31,692.18 = 6,335.16/x
  3. Step 3: Cross multiply
    21,126.84x = 31,692.18 × 6,335.16
  4. Step 4: Simplify right side
    21,126.84x = 200,775,031.05
  5. Step 5: Solve for x
    x = 200,775,031.05/21,126.84
  6. Step 6: Final answer
    x = 9,503.32

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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.