Home / 14,181.30-21,275.39-4,320.77

Finding the Fourth Proportional to 14,181.30, 21,275.39 and 4,320.77

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Solution

The fourth proportional to 14,181.30, 21,275.39 and 4,320.77 is: 6,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.30 : 21,275.39 = 4,320.77 : x
  2. Step 2: Convert to fraction form
    14,181.30/21,275.39 = 4,320.77/x
  3. Step 3: Cross multiply
    14,181.30x = 21,275.39 × 4,320.77
  4. Step 4: Simplify right side
    14,181.30x = 91,925,971.28
  5. Step 5: Solve for x
    x = 91,925,971.28/14,181.30
  6. Step 6: Final answer
    x = 6,482.20

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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.