Home / 20,150.32-27,798.81-12,583.52

Finding the Fourth Proportional to 20,150.32, 27,798.81 and 12,583.52

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Solution

The fourth proportional to 20,150.32, 27,798.81 and 12,583.52 is: 17,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.32 : 27,798.81 = 12,583.52 : x
  2. Step 2: Convert to fraction form
    20,150.32/27,798.81 = 12,583.52/x
  3. Step 3: Cross multiply
    20,150.32x = 27,798.81 × 12,583.52
  4. Step 4: Simplify right side
    20,150.32x = 349,806,774.08
  5. Step 5: Solve for x
    x = 349,806,774.08/20,150.32
  6. Step 6: Final answer
    x = 17,359.86

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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.