Home / 21,941.99-30,266.95-13,447.92

Finding the Fourth Proportional to 21,941.99, 30,266.95 and 13,447.92

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Solution

The fourth proportional to 21,941.99, 30,266.95 and 13,447.92 is: 18,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,941.99 : 30,266.95 = 13,447.92 : x
  2. Step 2: Convert to fraction form
    21,941.99/30,266.95 = 13,447.92/x
  3. Step 3: Cross multiply
    21,941.99x = 30,266.95 × 13,447.92
  4. Step 4: Simplify right side
    21,941.99x = 407,027,455.00
  5. Step 5: Solve for x
    x = 407,027,455.00/21,941.99
  6. Step 6: Final answer
    x = 18,550.17

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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.