Home / 21,607.93-29,826.32-12,658.29

Finding the Fourth Proportional to 21,607.93, 29,826.32 and 12,658.29

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Solution

The fourth proportional to 21,607.93, 29,826.32 and 12,658.29 is: 17,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.93 : 29,826.32 = 12,658.29 : x
  2. Step 2: Convert to fraction form
    21,607.93/29,826.32 = 12,658.29/x
  3. Step 3: Cross multiply
    21,607.93x = 29,826.32 × 12,658.29
  4. Step 4: Simplify right side
    21,607.93x = 377,550,208.19
  5. Step 5: Solve for x
    x = 377,550,208.19/21,607.93
  6. Step 6: Final answer
    x = 17,472.76

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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.