Home / 20,775.96-31,178.88-14,095.83

Finding the Fourth Proportional to 20,775.96, 31,178.88 and 14,095.83

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Solution

The fourth proportional to 20,775.96, 31,178.88 and 14,095.83 is: 21,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775.96 : 31,178.88 = 14,095.83 : x
  2. Step 2: Convert to fraction form
    20,775.96/31,178.88 = 14,095.83/x
  3. Step 3: Cross multiply
    20,775.96x = 31,178.88 × 14,095.83
  4. Step 4: Simplify right side
    20,775.96x = 439,492,192.07
  5. Step 5: Solve for x
    x = 439,492,192.07/20,775.96
  6. Step 6: Final answer
    x = 21,153.88

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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.