Home / 21,472.48-29,633.59-11,913.87

Finding the Fourth Proportional to 21,472.48, 29,633.59 and 11,913.87

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Solution

The fourth proportional to 21,472.48, 29,633.59 and 11,913.87 is: 16,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.48 : 29,633.59 = 11,913.87 : x
  2. Step 2: Convert to fraction form
    21,472.48/29,633.59 = 11,913.87/x
  3. Step 3: Cross multiply
    21,472.48x = 29,633.59 × 11,913.87
  4. Step 4: Simplify right side
    21,472.48x = 353,050,738.89
  5. Step 5: Solve for x
    x = 353,050,738.89/21,472.48
  6. Step 6: Final answer
    x = 16,442.01

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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.