Home / 21,785.32-32,677.88-14,388

Finding the Fourth Proportional to 21,785.32, 32,677.88 and 14,388

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Solution

The fourth proportional to 21,785.32, 32,677.88 and 14,388 is: 21,581.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785.32 : 32,677.88 = 14,388 : x
  2. Step 2: Convert to fraction form
    21,785.32/32,677.88 = 14,388/x
  3. Step 3: Cross multiply
    21,785.32x = 32,677.88 × 14,388
  4. Step 4: Simplify right side
    21,785.32x = 470,169,337.44
  5. Step 5: Solve for x
    x = 470,169,337.44/21,785.32
  6. Step 6: Final answer
    x = 21,581.93

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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.