Home / 27,141.53-40,710.33-8,421.08

Finding the Fourth Proportional to 27,141.53, 40,710.33 and 8,421.08

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Solution

The fourth proportional to 27,141.53, 40,710.33 and 8,421.08 is: 12,631.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,141.53 : 40,710.33 = 8,421.08 : x
  2. Step 2: Convert to fraction form
    27,141.53/40,710.33 = 8,421.08/x
  3. Step 3: Cross multiply
    27,141.53x = 40,710.33 × 8,421.08
  4. Step 4: Simplify right side
    27,141.53x = 342,824,742.20
  5. Step 5: Solve for x
    x = 342,824,742.20/27,141.53
  6. Step 6: Final answer
    x = 12,631.01

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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.