Home / 20,153.92-27,807.40-12,588.52

Finding the Fourth Proportional to 20,153.92, 27,807.40 and 12,588.52

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Solution

The fourth proportional to 20,153.92, 27,807.40 and 12,588.52 is: 17,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.92 : 27,807.40 = 12,588.52 : x
  2. Step 2: Convert to fraction form
    20,153.92/27,807.40 = 12,588.52/x
  3. Step 3: Cross multiply
    20,153.92x = 27,807.40 × 12,588.52
  4. Step 4: Simplify right side
    20,153.92x = 350,054,011.05
  5. Step 5: Solve for x
    x = 350,054,011.05/20,153.92
  6. Step 6: Final answer
    x = 17,369.03

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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.