Home / 21,445.77-29,588.07-12,944.66

Finding the Fourth Proportional to 21,445.77, 29,588.07 and 12,944.66

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Solution

The fourth proportional to 21,445.77, 29,588.07 and 12,944.66 is: 17,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.77 : 29,588.07 = 12,944.66 : x
  2. Step 2: Convert to fraction form
    21,445.77/29,588.07 = 12,944.66/x
  3. Step 3: Cross multiply
    21,445.77x = 29,588.07 × 12,944.66
  4. Step 4: Simplify right side
    21,445.77x = 383,007,573.24
  5. Step 5: Solve for x
    x = 383,007,573.24/21,445.77
  6. Step 6: Final answer
    x = 17,859.35

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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.