Home / 38,313.98-57,480.69-12,018.95

Finding the Fourth Proportional to 38,313.98, 57,480.69 and 12,018.95

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Solution

The fourth proportional to 38,313.98, 57,480.69 and 12,018.95 is: 18,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,313.98 : 57,480.69 = 12,018.95 : x
  2. Step 2: Convert to fraction form
    38,313.98/57,480.69 = 12,018.95/x
  3. Step 3: Cross multiply
    38,313.98x = 57,480.69 × 12,018.95
  4. Step 4: Simplify right side
    38,313.98x = 690,857,251.67
  5. Step 5: Solve for x
    x = 690,857,251.67/38,313.98
  6. Step 6: Final answer
    x = 18,031.47

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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.