Home / 28,043.41-42,036.75-18,188.95

Finding the Fourth Proportional to 28,043.41, 42,036.75 and 18,188.95

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Solution

The fourth proportional to 28,043.41, 42,036.75 and 18,188.95 is: 27,265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.41 : 42,036.75 = 18,188.95 : x
  2. Step 2: Convert to fraction form
    28,043.41/42,036.75 = 18,188.95/x
  3. Step 3: Cross multiply
    28,043.41x = 42,036.75 × 18,188.95
  4. Step 4: Simplify right side
    28,043.41x = 764,604,343.91
  5. Step 5: Solve for x
    x = 764,604,343.91/28,043.41
  6. Step 6: Final answer
    x = 27,265.03

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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.