Home / 21,962.08-30,307.68-11,890.52

Finding the Fourth Proportional to 21,962.08, 30,307.68 and 11,890.52

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Solution

The fourth proportional to 21,962.08, 30,307.68 and 11,890.52 is: 16,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.08 : 30,307.68 = 11,890.52 : x
  2. Step 2: Convert to fraction form
    21,962.08/30,307.68 = 11,890.52/x
  3. Step 3: Cross multiply
    21,962.08x = 30,307.68 × 11,890.52
  4. Step 4: Simplify right side
    21,962.08x = 360,373,939.97
  5. Step 5: Solve for x
    x = 360,373,939.97/21,962.08
  6. Step 6: Final answer
    x = 16,408.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.