Home / 27,520.40-37,984.20-18,089.84

Finding the Fourth Proportional to 27,520.40, 37,984.20 and 18,089.84

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Solution

The fourth proportional to 27,520.40, 37,984.20 and 18,089.84 is: 24,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.40 : 37,984.20 = 18,089.84 : x
  2. Step 2: Convert to fraction form
    27,520.40/37,984.20 = 18,089.84/x
  3. Step 3: Cross multiply
    27,520.40x = 37,984.20 × 18,089.84
  4. Step 4: Simplify right side
    27,520.40x = 687,128,100.53
  5. Step 5: Solve for x
    x = 687,128,100.53/27,520.40
  6. Step 6: Final answer
    x = 24,967.95

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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.