Home / 20,360.29-30,521.64-14,123.24

Finding the Fourth Proportional to 20,360.29, 30,521.64 and 14,123.24

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Solution

The fourth proportional to 20,360.29, 30,521.64 and 14,123.24 is: 21,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.29 : 30,521.64 = 14,123.24 : x
  2. Step 2: Convert to fraction form
    20,360.29/30,521.64 = 14,123.24/x
  3. Step 3: Cross multiply
    20,360.29x = 30,521.64 × 14,123.24
  4. Step 4: Simplify right side
    20,360.29x = 431,064,256.72
  5. Step 5: Solve for x
    x = 431,064,256.72/20,360.29
  6. Step 6: Final answer
    x = 21,171.82

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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.