Home / 21,673.51-29,910.84-12,113.45

Finding the Fourth Proportional to 21,673.51, 29,910.84 and 12,113.45

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Solution

The fourth proportional to 21,673.51, 29,910.84 and 12,113.45 is: 16,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.51 : 29,910.84 = 12,113.45 : x
  2. Step 2: Convert to fraction form
    21,673.51/29,910.84 = 12,113.45/x
  3. Step 3: Cross multiply
    21,673.51x = 29,910.84 × 12,113.45
  4. Step 4: Simplify right side
    21,673.51x = 362,323,381.98
  5. Step 5: Solve for x
    x = 362,323,381.98/21,673.51
  6. Step 6: Final answer
    x = 16,717.34

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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.