Home / 15,628.74-21,577.72-13,947.24

Finding the Fourth Proportional to 15,628.74, 21,577.72 and 13,947.24

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Solution

The fourth proportional to 15,628.74, 21,577.72 and 13,947.24 is: 19,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.74 : 21,577.72 = 13,947.24 : x
  2. Step 2: Convert to fraction form
    15,628.74/21,577.72 = 13,947.24/x
  3. Step 3: Cross multiply
    15,628.74x = 21,577.72 × 13,947.24
  4. Step 4: Simplify right side
    15,628.74x = 300,949,639.49
  5. Step 5: Solve for x
    x = 300,949,639.49/15,628.74
  6. Step 6: Final answer
    x = 19,256.17

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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.