Home / 21,670.92-29,903.67-12,237.66

Finding the Fourth Proportional to 21,670.92, 29,903.67 and 12,237.66

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Solution

The fourth proportional to 21,670.92, 29,903.67 and 12,237.66 is: 16,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.92 : 29,903.67 = 12,237.66 : x
  2. Step 2: Convert to fraction form
    21,670.92/29,903.67 = 12,237.66/x
  3. Step 3: Cross multiply
    21,670.92x = 29,903.67 × 12,237.66
  4. Step 4: Simplify right side
    21,670.92x = 365,950,946.21
  5. Step 5: Solve for x
    x = 365,950,946.21/21,670.92
  6. Step 6: Final answer
    x = 16,886.73

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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.