Home / 21,663.63-29,895.81-12,103.52

Finding the Fourth Proportional to 21,663.63, 29,895.81 and 12,103.52

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Solution

The fourth proportional to 21,663.63, 29,895.81 and 12,103.52 is: 16,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663.63 : 29,895.81 = 12,103.52 : x
  2. Step 2: Convert to fraction form
    21,663.63/29,895.81 = 12,103.52/x
  3. Step 3: Cross multiply
    21,663.63x = 29,895.81 × 12,103.52
  4. Step 4: Simplify right side
    21,663.63x = 361,844,534.25
  5. Step 5: Solve for x
    x = 361,844,534.25/21,663.63
  6. Step 6: Final answer
    x = 16,702.86

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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.