Home / 18,038.95-27,059.79-4,891.15

Finding the Fourth Proportional to 18,038.95, 27,059.79 and 4,891.15

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Solution

The fourth proportional to 18,038.95, 27,059.79 and 4,891.15 is: 7,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.95 : 27,059.79 = 4,891.15 : x
  2. Step 2: Convert to fraction form
    18,038.95/27,059.79 = 4,891.15/x
  3. Step 3: Cross multiply
    18,038.95x = 27,059.79 × 4,891.15
  4. Step 4: Simplify right side
    18,038.95x = 132,353,491.86
  5. Step 5: Solve for x
    x = 132,353,491.86/18,038.95
  6. Step 6: Final answer
    x = 7,337.10

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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.