Home / 20,574.72-28,392.12-11,622.06

Finding the Fourth Proportional to 20,574.72, 28,392.12 and 11,622.06

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Solution

The fourth proportional to 20,574.72, 28,392.12 and 11,622.06 is: 16,037.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.72 : 28,392.12 = 11,622.06 : x
  2. Step 2: Convert to fraction form
    20,574.72/28,392.12 = 11,622.06/x
  3. Step 3: Cross multiply
    20,574.72x = 28,392.12 × 11,622.06
  4. Step 4: Simplify right side
    20,574.72x = 329,974,922.17
  5. Step 5: Solve for x
    x = 329,974,922.17/20,574.72
  6. Step 6: Final answer
    x = 16,037.88

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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.