Home / 18,330.81-27,495.98-4,479.93

Finding the Fourth Proportional to 18,330.81, 27,495.98 and 4,479.93

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Solution

The fourth proportional to 18,330.81, 27,495.98 and 4,479.93 is: 6,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.81 : 27,495.98 = 4,479.93 : x
  2. Step 2: Convert to fraction form
    18,330.81/27,495.98 = 4,479.93/x
  3. Step 3: Cross multiply
    18,330.81x = 27,495.98 × 4,479.93
  4. Step 4: Simplify right side
    18,330.81x = 123,180,043.28
  5. Step 5: Solve for x
    x = 123,180,043.28/18,330.81
  6. Step 6: Final answer
    x = 6,719.84

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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.