Home / 21,073.58-29,085.62-13,529.45

Finding the Fourth Proportional to 21,073.58, 29,085.62 and 13,529.45

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Solution

The fourth proportional to 21,073.58, 29,085.62 and 13,529.45 is: 18,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.58 : 29,085.62 = 13,529.45 : x
  2. Step 2: Convert to fraction form
    21,073.58/29,085.62 = 13,529.45/x
  3. Step 3: Cross multiply
    21,073.58x = 29,085.62 × 13,529.45
  4. Step 4: Simplify right side
    21,073.58x = 393,512,228.43
  5. Step 5: Solve for x
    x = 393,512,228.43/21,073.58
  6. Step 6: Final answer
    x = 18,673.25

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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.