Home / 27,520.28-37,982.02-15,421.58

Finding the Fourth Proportional to 27,520.28, 37,982.02 and 15,421.58

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Solution

The fourth proportional to 27,520.28, 37,982.02 and 15,421.58 is: 21,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.28 : 37,982.02 = 15,421.58 : x
  2. Step 2: Convert to fraction form
    27,520.28/37,982.02 = 15,421.58/x
  3. Step 3: Cross multiply
    27,520.28x = 37,982.02 × 15,421.58
  4. Step 4: Simplify right side
    27,520.28x = 585,742,759.99
  5. Step 5: Solve for x
    x = 585,742,759.99/27,520.28
  6. Step 6: Final answer
    x = 21,284.04

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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.