Home / 21,377.66-29,500.95-11,946.22

Finding the Fourth Proportional to 21,377.66, 29,500.95 and 11,946.22

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Solution

The fourth proportional to 21,377.66, 29,500.95 and 11,946.22 is: 16,485.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.66 : 29,500.95 = 11,946.22 : x
  2. Step 2: Convert to fraction form
    21,377.66/29,500.95 = 11,946.22/x
  3. Step 3: Cross multiply
    21,377.66x = 29,500.95 × 11,946.22
  4. Step 4: Simplify right side
    21,377.66x = 352,424,765.16
  5. Step 5: Solve for x
    x = 352,424,765.16/21,377.66
  6. Step 6: Final answer
    x = 16,485.66

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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.