Home / 21,705.06-29,941.74-13,733.58

Finding the Fourth Proportional to 21,705.06, 29,941.74 and 13,733.58

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Solution

The fourth proportional to 21,705.06, 29,941.74 and 13,733.58 is: 18,945.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.06 : 29,941.74 = 13,733.58 : x
  2. Step 2: Convert to fraction form
    21,705.06/29,941.74 = 13,733.58/x
  3. Step 3: Cross multiply
    21,705.06x = 29,941.74 × 13,733.58
  4. Step 4: Simplify right side
    21,705.06x = 411,207,281.63
  5. Step 5: Solve for x
    x = 411,207,281.63/21,705.06
  6. Step 6: Final answer
    x = 18,945.23

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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.