Home / 21,947.04-30,274.58-13,453.28

Finding the Fourth Proportional to 21,947.04, 30,274.58 and 13,453.28

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Solution

The fourth proportional to 21,947.04, 30,274.58 and 13,453.28 is: 18,557.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947.04 : 30,274.58 = 13,453.28 : x
  2. Step 2: Convert to fraction form
    21,947.04/30,274.58 = 13,453.28/x
  3. Step 3: Cross multiply
    21,947.04x = 30,274.58 × 13,453.28
  4. Step 4: Simplify right side
    21,947.04x = 407,292,182.98
  5. Step 5: Solve for x
    x = 407,292,182.98/21,947.04
  6. Step 6: Final answer
    x = 18,557.96

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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.