Home / 20,086.08-27,710.88-12,528

Finding the Fourth Proportional to 20,086.08, 27,710.88 and 12,528

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Solution

The fourth proportional to 20,086.08, 27,710.88 and 12,528 is: 17,283.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.08 : 27,710.88 = 12,528 : x
  2. Step 2: Convert to fraction form
    20,086.08/27,710.88 = 12,528/x
  3. Step 3: Cross multiply
    20,086.08x = 27,710.88 × 12,528
  4. Step 4: Simplify right side
    20,086.08x = 347,161,904.64
  5. Step 5: Solve for x
    x = 347,161,904.64/20,086.08
  6. Step 6: Final answer
    x = 17,283.71

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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.