Home / 21,945.40-30,276.50-14,395.93

Finding the Fourth Proportional to 21,945.40, 30,276.50 and 14,395.93

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Solution

The fourth proportional to 21,945.40, 30,276.50 and 14,395.93 is: 19,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945.40 : 30,276.50 = 14,395.93 : x
  2. Step 2: Convert to fraction form
    21,945.40/30,276.50 = 14,395.93/x
  3. Step 3: Cross multiply
    21,945.40x = 30,276.50 × 14,395.93
  4. Step 4: Simplify right side
    21,945.40x = 435,858,226.97
  5. Step 5: Solve for x
    x = 435,858,226.97/21,945.40
  6. Step 6: Final answer
    x = 19,861.03

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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.