Home / 20,833.64-31,272.06-13,956.20

Finding the Fourth Proportional to 20,833.64, 31,272.06 and 13,956.20

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Solution

The fourth proportional to 20,833.64, 31,272.06 and 13,956.20 is: 20,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.64 : 31,272.06 = 13,956.20 : x
  2. Step 2: Convert to fraction form
    20,833.64/31,272.06 = 13,956.20/x
  3. Step 3: Cross multiply
    20,833.64x = 31,272.06 × 13,956.20
  4. Step 4: Simplify right side
    20,833.64x = 436,439,123.77
  5. Step 5: Solve for x
    x = 436,439,123.77/20,833.64
  6. Step 6: Final answer
    x = 20,948.77

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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.