Home / 21,947.11-30,274.02-13,453.04

Finding the Fourth Proportional to 21,947.11, 30,274.02 and 13,453.04

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Solution

The fourth proportional to 21,947.11, 30,274.02 and 13,453.04 is: 18,557.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947.11 : 30,274.02 = 13,453.04 : x
  2. Step 2: Convert to fraction form
    21,947.11/30,274.02 = 13,453.04/x
  3. Step 3: Cross multiply
    21,947.11x = 30,274.02 × 13,453.04
  4. Step 4: Simplify right side
    21,947.11x = 407,277,677.71
  5. Step 5: Solve for x
    x = 407,277,677.71/21,947.11
  6. Step 6: Final answer
    x = 18,557.24

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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.