Home / 21,363.62-29,483.39-12,291.76

Finding the Fourth Proportional to 21,363.62, 29,483.39 and 12,291.76

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Solution

The fourth proportional to 21,363.62, 29,483.39 and 12,291.76 is: 16,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,363.62 : 29,483.39 = 12,291.76 : x
  2. Step 2: Convert to fraction form
    21,363.62/29,483.39 = 12,291.76/x
  3. Step 3: Cross multiply
    21,363.62x = 29,483.39 × 12,291.76
  4. Step 4: Simplify right side
    21,363.62x = 362,402,544.99
  5. Step 5: Solve for x
    x = 362,402,544.99/21,363.62
  6. Step 6: Final answer
    x = 16,963.54

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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.