Home / 22,814.79-31,479.03-13,861.75

Finding the Fourth Proportional to 22,814.79, 31,479.03 and 13,861.75

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Solution

The fourth proportional to 22,814.79, 31,479.03 and 13,861.75 is: 19,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,814.79 : 31,479.03 = 13,861.75 : x
  2. Step 2: Convert to fraction form
    22,814.79/31,479.03 = 13,861.75/x
  3. Step 3: Cross multiply
    22,814.79x = 31,479.03 × 13,861.75
  4. Step 4: Simplify right side
    22,814.79x = 436,354,444.10
  5. Step 5: Solve for x
    x = 436,354,444.10/22,814.79
  6. Step 6: Final answer
    x = 19,125.95

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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.