Home / 21,690.17-29,935.64-13,733.13

Finding the Fourth Proportional to 21,690.17, 29,935.64 and 13,733.13

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Solution

The fourth proportional to 21,690.17, 29,935.64 and 13,733.13 is: 18,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.17 : 29,935.64 = 13,733.13 : x
  2. Step 2: Convert to fraction form
    21,690.17/29,935.64 = 13,733.13/x
  3. Step 3: Cross multiply
    21,690.17x = 29,935.64 × 13,733.13
  4. Step 4: Simplify right side
    21,690.17x = 411,110,035.75
  5. Step 5: Solve for x
    x = 411,110,035.75/21,690.17
  6. Step 6: Final answer
    x = 18,953.75

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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.