Home / 14,108.43-21,038.32-13,981.95

Finding the Fourth Proportional to 14,108.43, 21,038.32 and 13,981.95

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Solution

The fourth proportional to 14,108.43, 21,038.32 and 13,981.95 is: 20,849.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.43 : 21,038.32 = 13,981.95 : x
  2. Step 2: Convert to fraction form
    14,108.43/21,038.32 = 13,981.95/x
  3. Step 3: Cross multiply
    14,108.43x = 21,038.32 × 13,981.95
  4. Step 4: Simplify right side
    14,108.43x = 294,156,738.32
  5. Step 5: Solve for x
    x = 294,156,738.32/14,108.43
  6. Step 6: Final answer
    x = 20,849.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.