Home / 18,332.40-27,412.20-13,666.80

Finding the Fourth Proportional to 18,332.40, 27,412.20 and 13,666.80

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Solution

The fourth proportional to 18,332.40, 27,412.20 and 13,666.80 is: 20,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.40 : 27,412.20 = 13,666.80 : x
  2. Step 2: Convert to fraction form
    18,332.40/27,412.20 = 13,666.80/x
  3. Step 3: Cross multiply
    18,332.40x = 27,412.20 × 13,666.80
  4. Step 4: Simplify right side
    18,332.40x = 374,637,054.96
  5. Step 5: Solve for x
    x = 374,637,054.96/18,332.40
  6. Step 6: Final answer
    x = 20,435.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.